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1. A random sample of size 15 is selected from a normal population. The population standard deviation is unknown. Assume the null hypothesis indicates a twotailed test and the researcher decided to use the 0.10 significance level. For what values of t will the null hypothesis not be rejected?
2. Which of the following is a characteristic of the F distribution?
3. For a chisquare test involving a contingency table, suppose the null hypothesis is rejected. We conclude that the two variables are __________.
4. A sales manager for an advertising agency believes that there is a relationship between the number of contacts that a salesperson makes and the amount of sales dollars earned. What is the dependent variable?
5. Which of the following is most appropriately displayed with a frequency table?
6. The manager of Paul's fruit and vegetable store is considering the purchase of a new seedless watermelon from a wholesale distributor. Since this seedless watermelon costs $4, will sell for $7, and is highly perishable, he only expects to sell between six and nine of them. What is the opportunity loss for purchasing nine watermelons when the demand is for seven watermelons?
a) 8
b) 4
c) 12
d) 0
7. A firm offers routine physical examinations as part of a health service program for its employees. The exams showed that 8% of the employees needed corrective shoes, 15% needed major dental work, and 3% needed both corrective shoes and major dental work. What is the probability that an employee selected at random will need either corrective shoes or major dental work?
a) .25
b) 1.00
c) .50
d) .20
8. When data is collected using a qualitative, nominal variable, what is true about a frequency distribution that summarizes the data?
a) The upper and lower class limits must be calculated.
b) The number of classes is equal to the number of variables plus 2.
c) The “5 to the k rule” can be applied.
d) A pie chart can be used to summarize the data.
9. If an ANOVA test is conducted and the null hypothesis is rejected, what does this indicate?
a) The pvalue is less than a.
b) All population means are different.
c) At least one pair of population means is different.
d) The population means are equal.
10. A random sample of 20 items is selected from a population. When computing a confidence interval for the population mean, what number of degrees of freedom should be used to determine the appropriate tvalue?
a) 25
b) 21
c) 19
d) 20
11. The question, "Should products be withdrawn if even one death is associated with its prescribed use, even if no fault for the tampered product accrues to the manufacturer?" is an example of a(n) _____.
a) strip data mining issue
b) unresearchable question
c) illdefined problem
d) favoredtechnique problem
12. A large department store examined a sample of the 18 credit card sales and recorded the amounts charged for each of three types of credit cards: MasterCard, Visa, and Discover. Six MasterCard sales, seven Visa, and five Discover sales were recorded. The store used an ANOVA to test if the mean sales for each credit card were equal. What are the degrees of freedom for the F statistic?
a) 2 in the numerator, 15 in the denominator
b) 6 in the numerator, 15 in the denominator
c) 18 in the numerator, 3 in the denominator
d) 3 in the numerator, 18 in the denominator
13. A linear trend equation is used to represent time series values when the data are changing by equal what?
a) amounts
b) percents and proportions
c) proportions
d) percents
14. Which of the following goals should a good survey instrument accomplish?
a) Encourage each participant to provide accurate responses
b) Encourage participants to be succinct in their responses
c) Encourage participants to answer only those questions they are comfortable answering
d) Encourage participants to end the survey when they feel they have contributed enough information
15. Kroger, a grocery store chain, wants to identify the ideal store layout for increasing store sales. Because it primarily uses two store designs, one a grid layout with vertical aisles divided by a center aisle and another using a traditional straightaisle pattern, Kroger will match pairs of stores that have different designs but similar shopper demographics and location. Sales from each pair will then be compared to determine if store design is related to sales. Which type of study is this an example of?
a) Exploratory study
b) Case study
c) Ex post facto study
d) Longitudinal study
16. Bones Brothers & Associates prepare individual tax returns. Over prior years, Bones Brothers has maintained careful records regarding the time to prepare a return. The mean time to prepare a return is 90 minutes and the standard deviation of this distribution is 14 minutes. Suppose 100 returns from this year are selected and analyzed regarding the preparation time. What assumption do you need to make about the shape of the population distribution of all possible tax preparation times to make inferences about the mean time to complete a tax form?
a) The population distribution is skewed to the left.
b) The population distribution is skewed to the right.
c) The shape of the population distribution does not matter.
d) The population distribution is normal.
17. Checklists with several items to be considered by respondents may be subject to _____.
a) recency effects
b) leniency effects
c) halo effects
d) primacy effects
18. In a multiple rating list scale, ____.
a) participants rate multiple items on a 3point scale
b) the participant is restricted to circling their rating
c) it is possible to visualize the results better than with other numerical scales
d) the data generated are always ordinal
19. As the size of the sample increases, what happens to the shape of the distribution of sample means?
a) It cannot be predicted in advance
b) It is positively skewed
c) It is negatively skewed
d) It approaches a normal distribution
20. For any chisquare goodnessoffit test, the number of degrees of freedom is found by ______.
a) n + k
b) k 1
c) n – k  1
d) n + 1
21. BankChoice is concerned about stagnating profits and asks, "How can profitability be improved?" This is an example of a(n) _____.
a) research question
b) measurement question
c) management question
d) investigative question
22. A machine is set to fill the smallsize packages of M&M candies with 56 candies per bag. A sample revealed three bags of 56, two bags of 57, one bag of 55, and two bags of 58. To test the hypothesis that the mean candies per bag is 56, how many degrees of freedom are there?
a) 1
b) 7
c) 9
d) 8
23. An experimental study is one that _____.
a) attempts to reveal why or how one variable produces changes in another
b) involves manipulation of one or more variables to determine the effect on another variable
c) attempts to capture a population's characteristics by making inferences from a sample's characteristics and testing resulting hypotheses
d) discovers answers to the questions who, what, when, where, or how much
24. The monthly salaries of a sample of 100 employees were rounded to the nearest $10. They ranged from a low of $1,040 to a high of $1,720. If we want to condense the data into seven classes, what is the most convenient class interval?
a) $200
b) $50
c) $150
d) $100
25. Consider a regression analysis, where the correlation coefficient is 0.18. Then, the coefficient of determination is _______.
a) .0324
b) .36
c) 1.16
d) .424
26. In multiple regression analysis, when the independent variables are highly correlated, this situation is called __________________.
a) homoscedasticity
b) curvilinearity
c) multicollinearity
d) autocorrelation
27. Sam's Club installed selfcheckout stations that can track not only member's purchases but also packaging problems, as the system uses universal product codes to match the item the shopper has in their cart with its price and inventory level in the store, generating a spreadsheet style report for the researcher. If you consider the scanner as the tool for collecting data for Sam's researchers, they are doing data entry by ____.
a) spreadsheet
b) Optical Character Recognition
c) Field editing
d) Voice recognition
28. The weekly incomes of a large group of executives are normally distributed with a mean of $2,000 and a standard deviation of $100. What is the zscore for an income of $2,100?
a) 1.683
b) 0.90
c) 2.00
d) 1.00
29. A ranking scale is a scale that _____.
a) scores an object without making a direct comparison to another object
b) groups participants
c) groups concepts according to specific criteria
d) scores an object by making a comparison and determining order among two or more objects
30. What is the interpretation of a 96% confidence level?
a) The interval contains 96% of all sample means.
b) Approximately 96 out of 100 such intervals would include the true value of the population parameter.
c) There's a 96% chance that the given interval includes the true value of the population parameter.
d) There's a 4% chance that the given interval does not include the true value of the population parameter.
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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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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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1. The mean gas mileage for a hybrid car is 56 miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation of 3.2 miles per gallon.
2. What conditions must n satisfy to make the..

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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 o..

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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:
H0 : µ = 400
H1: µ ≠ 400
..

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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 select the pre..

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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.
EX 10) Ap..

This Tutorial was purchased 26 times & rated A by student like you. 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. What is the type of data (Quantitative..

This Tutorial was purchased 8 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 the cour..

QNT 561 Week 1 Assignment Statistics Concepts and Descriptive Measures Instructions (Financial Data)
This Tutorial was purchased 6 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 the cour..

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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 able to do ..

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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 make managerial decisi..

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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 hypothesis testing to make managerial decisions. In this assignment, stude..

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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: Microsoft Excel®, The Payment Time Case S..

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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 distributions to make..

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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 perform sensitivity analysis and make ..

This Tutorial was purchased 5 times & rated A+ by student like you. 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 was 25 hours. Assume that the po..
