QNT 561 Week 5 Lab Work (New)
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Chapter 13:
Ex 6) The owner of Maumee FordMercuryVolvo wants to study the relationship between the age of a car and its selling price. Listed below is a random sample of 12 used cars sold at the dealership during the last year.
a. If we wants to estimate selling price on the basis of the age of car, which variable is thr dependent varialble and which is the independent variable?
b. 1. Determine the correlation coefficient
2. Determine the coefficient of determination.
c. Interpret the correlation coefficient. Does it surprise you that the correlation coefficient is negative?
EX.12) The student Government Association at Middle Carolina University wanted to demonstrate the relationship between the number of beers a student drinks and his or her blood alcohol content (BAC). A random sample of 18 students participated in a study in which participating student was randomly assigned a number of beers, a member of the local sheriff’s office measured their blood alcohol content. The sample information is reported below.
 Choose scattered diagram best fit data.
 Fill in the blank below
 State decision rule.
Ex 14) The following sample observations were randomly selected.
a. Determine the regression equation.
b. Determine the value of Y when X is 7.
Ex 18) We are studying mutual bond funds for the purpose of investing in several funds. For this particular study, we want to focus on the assets fund and its fiveyear performance. The question is : can the fiveyear rate of return be estimated based on the assets of the fund? Nine mutual funds were selected at random, and their assets and rates of returns are shown below:
b1. Compute the coefficient of correlation.
b2. Compute the coefficient of determination
c. Give a description of the degree of association between the variables.
d. Determine the regression equation. Use assets as the independent variable
e. For a fund with $400.0 million in sales, determine the five year rate of return
Ex 22) The owner of Maumee FordMercuryVolvo wants to study the relationship between the age of a car and its selling price. Listed below is a random sample of 12 used cars sold at the dealership during last year
The regression equation is y=11.180.48X, the sample size is 12, and the standard error of the slope is 0.23. Use the .05 significance level. Can we conclude that the slope of the regression line is less than zero?
EX.26) The owner of Maumee FordMercuryVolvo wants to study the relationship between the age of a car and its selling price. Listed below is a random sample of 12 used cars sold at the dealership during last year.
a) Determine standard error of estimation.
b) Determine the coefficient of determination.
c) Interpret the coefficient of determination
Chapter 14:
Ex 2) Thompson photo Works purchased several new, highly sophisticated processing machines. The production department needed some guidance with respect to qualification needed by an operator. Is age a factor? Is the length of service as an operator important? In order to explore further the factors needed to estimate performance on the new processing machines, four variables were listed?
X1 = Length of time an employee was in industry
X2= Mechanical aptitude test score
X3= Prior onthejob rating
X4= Age
Performance on the new machine is designated y.
 What is this equation called?
 How many dependent and independent variable are there?
 What is the number 0.286 called?
 As age increases by one year, how much does estimated performance on the new machine increase?
 Carl Knox applied for job at photo works? He has been in business for 6 yrs and scored 280 on the mechanical aptitude test Carl’s prior onthejob performance rating is 97, and he is 35 years old
Ex 6) Consider the ANOVA table that follows
a.1. Determine the standard error of estimate
a.2. About 95% of the residuals will be between what two values?
b.1. Determine the coefficient of multiple determination.
b.2. Determine the percentage variation for the independent variables.
c. Determine the coefficient of multiple determinations, adjusted for the degree of freedom
Ex 8) The following regression output was obtained from a study of architectural firms. The dependent variables is the total amount of fees in millions of dollars.
X1 is the no of architects employed by the company
X2 is the no of engineers employed by the company
X3 is the no of years involved with health care projects
X4 is the no of states in which the firm operates
X5 is the percent of the firm’s work that is health carerelated
a. Write out the regression equation
b. How large is the sample? How many independent variables are there?
c. 1. State the decision rule for .05 significance level:
2. Compute the value of F statistics
3. Can we conclude that the set of regression coefficients could be different from 0?
d. 1. State the decision rule for .05 significance level:
2. Compute the value of test statistics
3. Which variable you consider eliminating?
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What are differences between dependent and independent samples? Provide examples. What are implications for determining the tests used to analyze data?
..

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What is the value of performing hypotheses tests to solve problems related to business and operations management? Provide specific examples.
..

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1. Consider the pairs of measurements shown to the right.
2. Researchers investigated the effect of tablet surface area to volume on the rate at which a drug is released in a controlledrelease dosage. For six similarly shaped tablet..

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What is the importance of pretesting questions and instruments? What are risks of not doing this? Provide an example.
..

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does technological advancement affect the ability to collect data? Provide examples. Does this advancement increase the chance for errors? Explain.
..

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1. Researchers conducted a survey of a representative sample of over 1,000 drivers. Based on how often each driver engaged in road behaviour, a road rage score was given. The drivers were also grouped by annual income. The data were subjected to an analysis of varian..

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You observe female sales representatives having lower customer defections than male sales representatives. What concepts and constructs would you use to study this phenomenon? How might the concepts or constructs relate to explanatory hypotheses? Explain.
..

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In your organization’s management development program, there was a heated discussion between people who claimed that theory is impractical and not effective, and others who claimed that effective theory is the most practical approach to problems. What position would you take and why?
..

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1. Which hypothesis, the null or the alternative, is the statusquo hypothesis?
2. A university economist conducted a study of elementary school lunch menus. During the statemandated testing period, school lunches averaged 890 calor..

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What is the purpose of sampling? What are some concerns and dangers of sampling? How important is the sample design to data validity? Explain. Provide an example where a sample might misrepresent data validity. For example, reflect on the current political campaign and the pollsters!
..

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What are some examples of operational definitions in research design within your profession? For example, in the education field, graduation rate and retention rate are important operational definitions to measure progress of students. Likewise other professions have common metrics and defin..

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1. A random sample of 87 observations produced a mean = 25.7 and a standard deviation s = 2.6.
2. Health care workers who use latex gloves with glove powder on a daily basis are particularly susceptible to developing a latex al..

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When would you use Chebyshev’s theorem and the empirical rule in business? How are they calculated? Provide one reallife example that requires Chebyshev’s theorem and one that requires the empirical rule.
..

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How may variance and standard deviation be applied to a realworld businessrelated problem? Provide a specific application in which these measures are useful.
..

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1. What is statistics?
2. Explain the difference between descriptive and inferential statistics.
3. Explain the difference between qualitative and quantitative data.
4. &nb..

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QNT 561 Week 1 Assignment Statistics Concepts and Descriptive Measures Instructions (Financial Data)
QNT 561 Week 1 Assignment Statistics Concepts and Descriptive Measures Instructions (Consumer Food)
QNT 561 Week 2 Case Study MBA Schools in Asia Pacific (2 Papers)
..

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This Tutorial contains 2 Sets of Report and Presentation
Complete the cumulative Business Research Report in approx. 1,500 words by collaborating with your team to include the following:
Revised tables or figures based on prior instructor feedback
The description or interpretati..

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This Tutorial contains 2 different sets
Administer the survey.
In a paper in the APA format describe the following:
Determine the sample process including sample contact, survey distribution, and survey collection.
Organize, prepare, and describe the data.
Include tabl..

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Create a Microsoft® Excel® spreadsheet with the two variables from a dataset for your choosing.
Analyze the data with MegaStat®, StatCrunch®, Microsoft® Excel®or other statistical tool(s), including:
(a) Descriptive stats for each numeric variable
and
(b) Histogram for e..

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This Tutorial contains 2 different sets
Create a draft of the survey.
Conduct a pilot pretest having another Learning Team in the class to provide feedback for your team. Chet will create a message thread for each team to place their survey in the Class Discussion Tab.&nb..

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This Tutorial contains 2 different Papers
Develop a plan for your Business Research Project in approx. 800 words.
Revise the research questions based on instructor feedback from the previous week.
Identify population and samples for your research.
Describe w..

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Identify an organization or business for your Learning Team research project.
Describe the products or services it provides.
Identify a problem or dilemma faced by the organization that could be addressed by research.
Discuss the problem as a team..

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Identify an organization from any member in your Learning Team or an organization with which your team is familiar. If an actual company is used, disguise its name with a pseudonym.
Identify one independent variable and one dependent variable based on the business. Operation..

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Chapter 13:
Ex 6) The owner of Maumee FordMercuryVolvo wants to study the relationship between the age of a car and its selling price. Listed below is a random sample of 12 used cars sold at the dealership during the last year.
a. If we wan..

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Chapter 10:
Ex 2) A Sample of 36 observations is selected from a normal population. The sample mean is 12, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.01 significance level.
EX. 10) Given the following hypotheses:
..

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Chapter 8:
Ex 2) The following is a list of 29 hospitals in the Cincinnati (Ohio) and Northern Kentucky region. The hospitals are identified by numbering them 00 through 28. Also included is whether the hospital is a general medical/surgical hospital (M/S) or a specialty hospital (..

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Chapter 5:
Ex 4) A large company must hire a new president. The Board of Directors prepares a list of five candidates, all of whom are equally qualified. Two of these candidates are members of a minority group. To avoid bias in the selection of the candidate, the company decides to..

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Chapter 2:
Ex 4) Two Thousand three hundred frequent business travelers are asked which Midwestern city they prefer: Indianapolis, Saint Louis, Chicago or Milwaukee. 388 liked Indianapolis best, 450 liked Saint Louis, 1212 liked Chicago and the remainder prefers Milwaukee. Develop ..

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Chapter 18:
EX.2) Listed Below is the number of movie tickets sold at the Library CinemaComplex, in thousands, for the period from 2001 to 2013. Compute a fiveyear weighted moving average using weights of 0.15, 0.15, 0.25, 0.16, and 0.29, respectively. Describe the trend in yield..

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Review the Case Study: MBA Schools in AsiaPacific and the Case Study: MBA Schools in AsiaPacific data set.
Prepare a 1,050word managerial report for your boss.
Use the following questions for guidelines and directions on what to include in the report:
1. &nbs..

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Purpose of Assignment
The purpose of this assignment to orient students to the key concepts in statistics. This assignment will introduce students to the language of statistics. Students will also get a chance to warmup on evaluating some basic descriptive statistics using Excel® prior to th..

QNT 561 Week 1 Assignment Statistics Concepts and Descriptive Measures Instructions (Financial Data)
This Tutorial was purchased 5 times & rated A by student like you.
Purpose of Assignment
The purpose of this assignment to orient students to the key concepts in statistics. This assignment will introduce students to the language of statistics. Students will also get a chance to warmup on evaluating some basic descriptive statistics using Excel® prior to th..

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Individual Paper Signature Assignment
About Your Signature Assignment
This signature assignment is designed to align with specific program student learning outcome(s) in your program. Program Student Learning Outcomes are broad
statements that describe what students should know and be abl..

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Week 5
Learning team Paper
Part A : OneSample Hypothesis Testing Cases
Purpose of Assignment
The purpose of this assignment is to develop students' abilities to combine the knowledge of descriptive statistics covered in Weeks 1 and 2 and onesample hypothesis testing to mak..

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Week 5
Individual Paper
· Spicy Wings Case
Purpose of Assignment
The purpose of this assignment is to develop students' abilities to combine the knowledge of descriptive statistics covered in Weeks 1 and 2 and onesample hypoth..

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Individual Paper
Purpose of Assignment
The purpose of the assignment is to develop students' abilities in using datasets to apply the concepts of sampling distributions and confidence intervals to make management decisions.
Assignment Steps
Resources: Micros..

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Learning team paper
Purpose of Assignment
This assignment has two cases. The first case is on expansion strategy. Managers constantly have to make decisions under uncertainty. This assignment gives students an opportunity to use the mean and standard deviation of probability distribut..

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Individual Paper:
Purpose of Assignment
The purpose of this assignment is for students to learn how to make managerial decisions using a case study on Normal Distribution. This case uses concepts from Weeks 1 and 2. It provides students an opportunity to perfor..

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1. James Desreumaux, VP of Human Resources of American First Banks (AFB), is reviewing the employee training programs of AFB banks. His staff randomly selected personnel files for 100 tellers in the Southeast Region and determined that their mean training time ..

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QNT 561 Final Exam Guide (New, 2017)
QNT 561 Week 1 Assignment Statistics Concepts and Descriptive Measures Instructions (Financial Data)
QNT 561 Week 1 Assignment Statistics Concepts and Descriptive Measures Instructions (Consumer Food)
QNT 561 Week 2 Case Study..

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Individual Paper Signature Assignment
About Your Signature Assignment
This signature assignment is designed to align with specific program student learning outcome(s) in your program. Program Student Learning Outcomes are broad
statements that describe what students should know and be abl..

This Tutorial was purchased 3 times & rated B+ by student like you.
After reading chapter 12, explain how ANOVA could help to explain the association between two variables. Give an example.
After reading chapter 13, how ANOVA could help to understand the expansion of the hypothesis testing of two variables?
After reading chapter 18, ..
