Basic Business Statistics, Student Value Edition
14th Edition
ISBN: 9780134685113
Author: Mark L. Berenson, David M. Levine, David F. Stephan, Kathryn Szabat
Publisher: PEARSON
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Chapter 12, Problem 53PS
To determine
State the condition under which
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When we perform a chi-square test for independence, the null hypothesis states that the two variables are
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A diet center wanted to test three different methods for losing weight to determine if the average weight loss (reported in pounds/week) for each method is the same. The results for the three methods are tabulated below. Given that there is a significant difference between the three methods, use the Tukey test to determine if there is a significant difference between each pair of methods. Let a=0.05. (picture attached)
Chapter 12 Solutions
Basic Business Statistics, Student Value Edition
Ch. 12 - Determine the critical value of 2 with 1 degree of...Ch. 12 - Determine the critical value of 2 with 1 degree of...Ch. 12 - Use the following contingency table: a. Compute...Ch. 12 - Use the following contingency table: a. Compare...Ch. 12 - An lpsos poll asked 1,004 adults “If purchasing...Ch. 12 - Prob. 6PSCh. 12 - Prob. 7PSCh. 12 - The Society for Human Resource Management (SHRM)...Ch. 12 - What Social media tools do marketers commonly use?...Ch. 12 - Docs co-browsing have positive effects on the...
Ch. 12 - Consider a contingency table, with two rows and...Ch. 12 - Use the following contingency table: a. Compute...Ch. 12 - Use the following contingency table: a. Compute...Ch. 12 - How common are financial cost or contractual...Ch. 12 - Business sensor technology provides a way for...Ch. 12 - Prob. 16PSCh. 12 - Repeat (a) and (b) of Problem 12.16, assuming that...Ch. 12 - Prob. 18PSCh. 12 - The MSCI 2016 Survey of Women of Boards Survey...Ch. 12 - Prob. 20PSCh. 12 - Prob. 21PSCh. 12 - Prob. 22PSCh. 12 - A Gallup survey across generations of workers...Ch. 12 - How often do Facebook users post? A study by the...Ch. 12 - What makes sales leaders tick? Mercuri...Ch. 12 - PwC takes a closer look at what CEOs are looking...Ch. 12 - Using Table E.6, determine the lower-and...Ch. 12 - Using Table E.6, determine the lower-tail critical...Ch. 12 - Prob. 29PSCh. 12 - Prob. 30PSCh. 12 - Prob. 31PSCh. 12 - Prob. 32PSCh. 12 - From Problem 12.32 , at the 0.05 level of...Ch. 12 - In Problems 12.32 and 12.33, what is your...Ch. 12 - A vice president for marketing recruits 20 college...Ch. 12 - Prob. 36PSCh. 12 - Is there a difference in the satisfaction rating...Ch. 12 - The management of a hotel has the business...Ch. 12 - Prob. 39PSCh. 12 - Brand valuations are critical to CEOs, financial...Ch. 12 - A bank with a branch located in a commercial...Ch. 12 - Prob. 42PSCh. 12 - Prob. 43PSCh. 12 - Prob. 44PSCh. 12 - A pet food company has the business objective of...Ch. 12 - A hospital conducted a study of the waiting time...Ch. 12 - Prob. 47PSCh. 12 - An advertising agency has been hired by a...Ch. 12 - Prob. 49PSCh. 12 - The more costly and time consuming it is to export...Ch. 12 - Prob. 51PSCh. 12 - Prob. 52PSCh. 12 - Prob. 53PSCh. 12 - Prob. 54PSCh. 12 - Prob. 55PSCh. 12 - Prob. 56PSCh. 12 - Prob. 57PSCh. 12 - Prob. 58PSCh. 12 - Prob. 59PS
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- what is the t test for the abovearrow_forwardNew employees at a company are required to attend a three-day training. For social distancing, the employees are split into two groups, one that attends in-person, and the other group attends via zoom. At the end of training, the same test is given to each group and the scores are given below. Can it be concluded that the in person group performed better on the training test? Use α=0.05. In person group: 56, 50, 52, 44, 52, 47, 47, 53, 45, 48, 42, 51, 42, 43, 44 Zoom group: 59, 54, 55, 65, 52, 57, 64, 53, 53, 56, 53, 57arrow_forwardFor a chi square test of independence, with 3 rows and 2 columns, what is the degrees of freedom?arrow_forward
- For example, using the formula for quartile 2:arrow_forwardWhat are the underlying assumptions of the t test you use in ?arrow_forwardA chi-square independence test is to be conducted to decide whether an association exists between two variables of a populations. One variable has 4 possible values and the other variable has 2. What are the degrees of freedom for the χ2-statistic? answer:arrow_forward
- The data in the contingency table to the right count the number of male and female shoppers who accept or reject a discounted offer in return for supplying a retailer with an email address. Consider using these data to test the null hypothesis that gender and acceptance are independent (H0). Male Female Accept 105 95 Reject 95 105 (c) Find the value of x2(chi-square) for testing H0. The value of x2 (chi-square)for testing H0 is _____. (Round to three decimal places as needed.) (d) Find the p-value for testing H 0. (Round to three decimal places as needed.)arrow_forwardDoes training in stress reduction make a difference for student success? 15 students received training (M1= 88, SS1= 400) and 15 students did not (M2= 82, SS2= 440). Test using α = .05 s(M1-M2) =arrow_forwardFor the chi-square test of independence, Provide a hypothetical formulation of test of independence.arrow_forward
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