QNT 561 Final Exam Question With Answers

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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 t-value? a) 25 b) 21 c) 19 d) 20 QNT 561 Final Exam Solution QNT 561 Final Exam (Latest) 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 The question, "Should products be withdrawn if even one death is associated with its prescribed use, even if no fault for the tampered product accrues to the manufacturer?"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) ill-defined problem d) favored-technique 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
QNT 561 Entire Courses and Final Exam QNT 561 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 Answers To QNT 561 Final Exam Free Essays QNT 561 Final Exam 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 straight-aisle 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
Page 1 and 2: QNT 561 Final Exam 1. A random samp
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