Premium Essay

Statistics Assignment Ch.4

In: Other Topics

Submitted By NPWannaBe
Words 361
Pages 2
M3A4 Lab (Chebyshev’s Theorem)
Chebyshev’s Theorem states that in any given data set or list of values, whether it is a population, or a sample of that population, the data will fall in a certain percentage in relation to the average or mean of the values. More specifically, it shows that in the given data set, at least
75% of the data will fall within 2 standard deviations on either side of the mean. The standard deviation is the way we describe how data spreads around the mean. In the same set of data, at least 88.9 % of the data will fall within 3 standard deviations on either side of the mean, and finally at least 93.8 % of the data will fall within 4 standard deviations on either side of the mean. It is easier to see if you look at the data in a chart such a sample that has data which is evenly distributed such as that which is seen in a Bell Shaped Curve. Here, I will draw you a picture so you can see what it looks like.

Now, when you look at the graph you can see where the median is. You can see where the values of the standard deviation are, and you can see where each percentage of values will in relation to the mean. Notice the Orange line represents 75% of the data; the Green line represents 88.9% of the data, and the Yellow line represents 93.8% of data. I hope that helps you to understand what
Chebyshev’s Theorem says and what it means.

Yes, you would be right because Chebyshev’s Theorem can be used in any population or any sample of a population. Even if the data is not distributed evenly, there is still a certain percentage of data that will fall within a certain distance from the mean of the data. The definition of the data spread around the mean is often expressed as any data set and for any constant (k) greater than 1, the percentage of that must lie within k standard deviations on either side of the…...

Similar Documents

Premium Essay

Acl Ch. 4

...Classify Command 1. How many inventory items with a market value of $25,000 or more are included in location 02? There are 4 inventory items with a market value of $25,000 or more that are included in location 02. 2. Use the drill-down feature to determine inventory items at cost (field = Inventory_Value_at_Cost) in Location 03 with a zero or negative value. (Hint: return to Classify by using the Classify button above the table.) How many are included? There are 3 inventory items with a market value of zero or a negative value that are included in location 03. Summarize Command 1. How many records are in the table you just created? There are 37 records in the table created 2. What is the Location/Product Class with the lowest inventory value at cost? Location 01 and Product Class 02 has the lowest inventory value at cost. Cross-tabulate Practice 1. How many managers are included in the Empmast Table? There are 8 managers that are included in the Empmast Table. 2. How many employees work in work department #D21? There are 7 employees who work in department #D21. 3. How many filters did you use to obtain the same information? I used 1 filter to obtain the same information. 4. Is the following statement true or false? Clicking on a row or column title in a command results screen creates a filter. This is True. 5. Compare your output for Cross-tabulate to the printout you made for Summarize in the last practice session. How is the......

Words: 1015 - Pages: 5

Free Essay

Ch 4 Sped

...Chapter 4 1. Explain what is meant by a chronic and acute health impairment. * Chronic Chronic is when the health impairment is long term. Chronic health impairments are defined to last more than a year after the first diagnosis. One example is diabetes. Pg. 83-84 * Acute Acute is when the health impairment is short term. Acute health impairments are ones that can be helped in a shorter time and not lasting over a life span. Pg. 83 2. Describe the impact of visible versus invisible related to health impairments. * When an impairment is visible there are more precautions and adaptions made. Pg. 84 * The people that interact with the person with a visible health impairment would know and not be surprised when something happens. Pg 84 * Although when health impairments are invisible some people may not be known as really ill and get the treatment and excess aid they need. Pg. 84 * They also may interact in activities that could be dangerous to them. Pg. 84 Asthma 3. Define Asthma and provide 4 facts about it. * Definition * Asthma is the most common pulmonary disease of childhood. Pg. 84 * 4 Facts * Asthma can begin in infancy or develop later in life. Pg. 84 * Asthma is a disease in result of many factors in that genetic predisposition interacts with circumstances in the environment. Pg. 85 * It develops beginning with allergen-induced inflammation followed by a consolidation phase......

Words: 1640 - Pages: 7

Free Essay

Ccna Ch 4

...CCNA 1 Chapter 4 V4.0 Answers Posted in CCNA 1 - Network Fundamentals (V4.0) - 5 March 2010 - 1 comment - 188,626 views 1 Refer to the exhibit. What two pieces of information can be determined from the output that is shown? (Choose two.) The local host is using three client sessions. The local host is using web sessions to a remote server. The local host is listening for TCP connections using public addresses. The local host is using well-known port numbers to identify the source ports. The local host is performing the three-way handshake with 2. After a web browser makes a request to a web server that is listening to the standard port, what will be the source port number in the TCP header of the response from the server? 13 53 80 1024 1728 3. Which information is found in both the TCP and UDP header information? sequencing flow control acknowledgments source and destination 4. Which is an important characteristic of UDP? acknowledgement of data delivery minimal delays in data delivery high reliability of data delivery same order data delivery 5. Refer to the exhibit. Host A is using FTP to download a large file from Server 1. During the download process, Server 1 does not receive an acknowledgment from Host A for several bytes of transferred data. What action will Server 1 take as a result? create a Layer 1 jam signal reach a timeout and resend the......

Words: 973 - Pages: 4

Premium Essay

Intermediate Accounting Ch 4

...What we’ll cover: 1. Income Statement 2. Format of the Income Statement 3. Reporting Irregular Items 4. Special Reporting Issues 1. Income Statement a. Usefulness • Evaluate past performance • Predicting future performance • Help assess the risk or uncertainty of achieving future cash flows b. Limitations • Companies omit items that cannot be measured reliably • Income is affected by the accounting methods employed • Income measurement involves judgment c. Quality of Earnings • Companies have incentives to manage income to meet or beat Wall Street expectations, so that o market price of stock increases and o value of stock options increase. • Quality of earnings is reduced if earnings management results in information that is less useful for predicting future earnings and cash flows. 2. Format of the Income Statement a. Elements of the Income Statement • Revenues – Inflows of assets or settlements of its liabilities that constitute the entity’s ongoing major or central operations. Examples of Revenue Accounts: o Sales o Fee revenue o Interest revenue o Dividend revenue o Rent revenue • Expenses – Outflows or other using-up of assets or incurrences of liabilities that constitute the entity’s ongoing major or central operations.......

Words: 2418 - Pages: 10

Premium Essay

Bmgt 2020 Ch 4, 5, 6 Assignment order to meet the appropriate standards of performance. 3. There were two company examples of task analysis provided in the text: Texas Instruments & Boeing, briefly explain how useful the task analysis was in these cases? In the Texas Instrument’s case: Task Analysis was used to develop a train-the-trainer program. A five step approach was to task analysis was used: 1. List typical tasks, 2. Survey staff, 3. Observe the classroom, 4. Conduct structured interviews, 5. Prepare and present a final report. Use of the task analysis allowed for input from all stakeholders, use of multiple methods, rating of tasks, view of broad perspective. The Task Analysis Process includes: Overall Job Description; Task identification; Identify What I Takes to Do the Job; Identify the Areas That Cam Most Benefit from Training or HRD; Prioritize Training Needs. Conversely, Boeing used the Task Analysis approach to assess expert CAD-CAM user’s thinking fo solving problems, dealing with uncertainty, and minimizing risk 4. Is a performance appraisal the same as person analysis? Why or Why not? No they are not the same. Personal analysis is directed at determining the training needs of the individual employees. Where, Performance appraisal is a tool used to collect person analysis data. Performances are periodic. 5. What part does a needs analysis play in this process? Need assessment is the process by which an organization’s HRD needs are identified and......

Words: 818 - Pages: 4

Premium Essay

Chern's Case Study Ch.4

...Ch. 4 Case Study Job Requirement Matrix for Sale Associate |Job Duty |Tasks |Relative |Relative Time |Competency or KSAO |Importance of KSAO or | | | |Importance of Job|Spent (%) | |Competency to Task | | | |Duty (%) | | |Performance (1 = low, | | | | | | |10 = high),( E = | | | | | | |essential) | | Customer Service |1. Greet customers and ascertain what |35 |50 |1. Knowledge of principles and |10 E | | |each customer wants or needs. | | |processes for providing customer | | | |2. Answer questions regarding the store | | |and personal services. | | | |and its merchandise. | | |2. Active listening skills...

Words: 526 - Pages: 3

Premium Essay

Acc 440 Week 4 Individual Assignment Ch 12

...In this pack of ACC 440 Week 3 Learning Team Assignment Ch. 11 Textbook Exercises you will find the next information: Q11-1 Explain the difference between indirect and direct exchange rates. Q11-2 What is the direct exchange rate if a U.S. company received $1.3623 in Canadian currency in exchange for $1.00 in U.S. Currency? Q11-3 The U.S. dollar strengthened against the European euro. Will imports from Europe into the United States be more expensive or less expensive in U.S. dollars? Explain. Q11-4 Differentiate between a foreign transaction and a foreign currency transaction. Give an example of each. Q11-5 What types of economic factors affect currency exchange rates? Give an example of a change in an economic factor that result in a weakening of the local currency unit versus a foreign currency unit. Q11-6 How are assets and liabilities denominated in a foreign currency measure on the transaction date? On the balance sheet date? Q11-7 When are foreign currency transaction gains or losses recognized in the financial statements? Where are these gains or losses reported in the financial statements? Q11-8 Sun Company, a U.S. corporation, has an accounts payable of $200,000 denominated in Canadian dollars. If the direct exchange rate increases, will Sun experience a foreign currency transaction gain or loss on this payable? Q11-9 What are some ways a U.S. company can manage the risk of exchanges......

Words: 371 - Pages: 2

Premium Essay

Journals Ch. 1-4

...Journals Ch. 1-4 Chapter 1 Pg. 8 Would you describe yourself as a multiracial, or do you see yourself as belonging to a single race? Why? I consider myself multiracial. I come from a Hispanic culture but after living in Miami for so many years, and being surrounded by such a cultural landscape I have also adopted into the American culture. I am also white. Pg. 12 Have you or any member of your family ever encountered a glass ceiling? Explain. Luckily no one in my family has encountered a glass ceiling; they all work for diverse and accepting companies. Pg. 14 As you read the following scenarios that represent a range of reaction (Cultural Cruise Control, Beginning Adjustments, and Fine tuning), with whom do you most identify? Why? I identify the most with fine-tuning. Miami is an extremely diverse city and after living here for so many years, I have learned to respect and appreciate all the diversity that surrounds me, to the point that I am very comfortable with it. Pg. 16 Describe a life experience in which you were in cultural cruise control. Then describe another experience in which you were engaged in beginning adjustments or fine-tuning. Compare these two experiences. One time I was on the way to Orlando with my family, my dad was driving and we got pulled over by a cop. The cop approached our car casually, the moment he started talking to my dad and realized I was translating for him, his approached changed completely! He started being rude and...

Words: 2479 - Pages: 10

Premium Essay

An Assignment on Business Statistics

...An assignment on Business statistics Submitted To: Nurun Nahar Department of Business Administration Northern University of Bangladesh Submitted By: Section: A Name | ID | Md. Ariful Islam | BBA120104462 | Md. Faruk Hossen | BBA11034268 | Md. Emran Hossen | BBA110304312 | Md. Mizanur Rahman | BBA11034254 | Date of submission: 17th September 2013 Definitions of statistics Singular sense Statistics can be defined in two sense i.e. singular and plural. In singular sense it may be defined as the various methods and techniques for attaining and analyzing the numerical information. Different economists have different view about statistics. According to Boddingtons Statistics is, “the science of estimates and probabilities”. The techniques and method means the collection of data, organization, presentation, analysis and interpretation of numerical data: Plural sense a plural sense, statistics means the aggregates of numerical facts collected systematically. The most popular and acceptable definition is given by Horace and Secrist. According to them, “Statistics means the aggregate of face affected to a market extent by multiplicity of course, numerically expressed, enumerated or estimated according to reasonable standard of accuracy collected in a systematic manner for pre-determined purpose and placed in relation to each other.” Definitions by A.L. Bowley: Statistics are numerical statement of facts in any department of enquiry placed in relation to each......

Words: 631 - Pages: 3

Premium Essay

70680 Ch 4 Lab04

...LAB 4 CAPTURING A REFERENCE IMAGE This lab contains the following exercises and activities: Exercise 4.1 Installing Windows 7 AIK Exercise 4.2 Creating an Answer File Exercise 4.3 Creating a Windows PE Boot Image Exercise 4.4 Capturing an Image Lab Challenge 4.1 Creating a Capture Image SCENARIO As part of the planning stage of a Windows 7 workstation deployment project, you have been assigned the task of installing the Windows 7 Automated Installation Kit, building a reference computer, and capturing an image of the reference computer. Estimated lab time: 80 minutes | | | | | | | | Exercise 4.1 Installing Windows 7 AIK | | | | | | | | | Overview | In Exercise 4.1, you install Windows 7 | AIK on a workstation, using | | | | installation files stored on your server. | | | | | | | | | Completion time | 10 minutes | | | | | | | | | | 1. Log on to NYC-CL1 using the contoso\Administrator user account and the password Pa$$w0rd. 2. Click Start, and in the Search programs and files box, type \\rwdc01\labfiles\waik\startcd.exe and press Enter. The Welcome to Windows Automated Installation Kit window appears, as shown in Figure 4-1. Figure 4-1 The Welcome to Windows Automated Installation Kit window 3. Click Windows AIK Setup. The Windows Automated Installation Kit Setup Wizard appears. 4. Click Next to bypass the Welcome page. The License Terms page appears. ...

Words: 1629 - Pages: 7

Premium Essay

Healthcare Finance Ch. 4

...Chapter 4   | Questions 4.3, 4.6, 4.9 (p. 139);    | Problems 4.2,  4.4, 4.5 (pp. 140-141)   | 4.3 * a.What are assets? Assets are items that either possess or create economic benefit for an organization. * b.What are the three major categories of assets? Current assets, long-term investments and net property and equipment. 4.6 * a.What is the difference between liabilities and equity? Liability is a fixed financial obligation of a business while equity is the book value of the ownership position in a business. * b.What makes a liability a current liability? Current liabilities appear on the company's balance sheet and include short term debt, accounts payable, accrued liabilities and other debts. * c.Give some examples of current liabilities. Some examples of current liability would be short term loans or income tax owed to the government within a year. * d.What is the difference between long-term debt and notes payable? The main difference between long term debt and notes payable is the amount of time available for repayment. 4.9’ * a.What is the statement of cash flows, and how does it differ from the income statement? The cash flow reflects more of an at-a-glance income statement that shows a snapshot of money spent and received. The income statement on the other hand shows a more in depth picture of money in and out by also describing money gain or loss through things like depreciation. * b.What are the three major......

Words: 729 - Pages: 3

Free Essay

Ch.4 Review

...Chapter 4 Review Question 1 The process of stating the basic dilemma and then developing other questions by progressively breaking down the original question into more specific ones is called the _____. research question management-research-question hierarchy management dilemma management question investigative question Question 2 Which of the following statements is false regarding the evaluation of alternatives? The selection of alternatives is determined by the decision variable chosen and the decision rule used Each alternative must be explicitly stated A decision variable is defined by an outcome that may be measured A decision rule is determined by which outcomes may be compared all of the above are true Question 3 Apple plans to survey every customer who has purchased an Apple computer in the last 5 years. Apple plans to use a _____. convenience sample snowball sample systematic sample census random sample Question 4 Ensuring consistency among respondents, locating omissions, and reducing errors in recording are all benefits of data collection data editing sampling coding data analysis Question 5 Reducing data to a manageable size, developing summaries, and applying statistical techniques are all aspects of sampling data collection pilot testing data analysis data transformation Question 6 A synopsis of the problem, findings, and recommendations are provided in the ____ section of a research report. executive......

Words: 332 - Pages: 2

Free Essay

Wireshark Lab Ch. 4

...Solution to Wireshark Lab: IP Fig. 1 ICMP Echo Request message IP information 1. What is the IP address of your computer? The IP address of my computer is 2. Within the IP packet header, what is the value in the upper layer protocol field? Within the header, the value in the upper layer protocol field is ICMP (0x01) 3. How many bytes are in the IP header? How many bytes are in the payload of the IP datagram? Explain how you determined the number of payload bytes. There are 20 bytes in the IP header, and 56 bytes total length, this gives 36 bytes in the payload of the IP datagram. 4. Has this IP datagram been fragmented? Explain how you determined whether or not the datagram has been fragmented. The more fragments bit = 0, so the data is not fragmented. 5. Which fields in the IP datagram always change from one datagram to the next within this series of ICMP messages sent by your computer? Identification, Time to live and Header checksum always change. 6. Which fields stay constant? Which of the fields must stay constant? Which fields must change? Why? The fields that stay constant across the IP datagrams are: • Version (since we are using IPv4 for all packets) • header length (since these are ICMP packets) • source IP (since we are sending from the same source) • destination IP (since we are sending to the same dest) • Differentiated Services (since all packets are ICMP they use the same Type of Service class) • Upper Layer Protocol......

Words: 873 - Pages: 4

Premium Essay

Statistics Assignment

...(after you fill in the blank).  The sample space of a random variable is comprised of the integers 0, 1, 2, 3, 4, 5, and 6. The probabilities of each value are shown in the table below (with one missing value). |Value |0 |1 |2 |3 |4 |5 |6 | |Probability |.10 |.15 |.25 |.10 |  |.10 |.15 | A Population For Tasks 19-21, use the file called "pop3.csv" found here. That file contains information about time to failure of an entire production of some computer parts. The file contains two variables, "type" and "time", each measured over the 100,000 members of the population. The variable "type" is a factor, with three levels, "a", "b" and "c", and the variable "time" is numeric.  If the value of time is 4, that means that the part lasted 4 units of time (years?) before a failure occurred.  You should treat the content of this file as the information from an entire population. Save the file on your computer and read the data stored in the file into R.  If you have trouble loading the data into R, email your instructor immediately—don't worry if you think you will find the answer 1 minute after sending the email—just send the email.  Tasks 19-21 refer to the information in the file. Submitting the Assignment For the assignment you should complete the following tasks. Tasks 1-8 refer to the sequence of 17 data values presented above,......

Words: 1044 - Pages: 5

Premium Essay

Business Statistics Assignment

...Please either complete section below or affix Barcode Label here: NB: This label shows Course Code; Course Name and assessment item number. Course Code: IBA134 Course Name: Business Statistics Due Date: 11 / 08 / 13 Assessment Item #: 2 Enrolment: External On Campus Campus (enrolled): Course Tutor: Ms Lucille Wong Course Convenor: Professor E Selva Selvanathan ASSESSMENT COVER SHEET DATE RECEIVED Postmark: / / Please provide your STUDENT NUMBER or affix Student Barcode Label here: Student Name: JL ACADEMIC INTEGRITY DECLARATION Breaches of academic integrity (cheating, plagiarism, falsification of data, collusion) seriously compromise student learning, as well as the University’s assessment of the effectiveness of that learning and the academic quality of the University’s awards. All breaches of academic integrity are taken seriously and could result in penalties including failure in the course and exclusion from the University. Students should be aware that the University uses text-matching software to safeguard the quality of student learning and that your assignment will be checked using this software. I acknowledge and agree that the examiner of this assessment item may, for the purpose of marking this assessment item:  reproduce this assessment item and provide a copy to another Griffith staff member; and/  submit this assessment item to a......

Words: 2938 - Pages: 12