Nationwide Insurance would like to perform a chi-square test to investigate whether a difference exists in the proportion of male and female teenagers who text while they drive
A random sample of 80 male teenagers found that 50 indicated they texted while driving. A random sample of 120 female teenagers found that 65 indicated they texted while driving. Using ? = 0.5, the conclusion for this chi-square test would be that because the test statistic is__________________________________________________________________.A) more than the critical value, we can reject the null hypothesis and conclude that there is a difference in the proportion of male and female teenagers who text while they drive
B) less than the critical value, we can reject the null hypothesis and conclude that there is a difference in the proportion of male and female teenagers who text while they drive
C) more than the critical value, we cannot reject the null hypothesis and conclude that there is no difference in the proportion of male and female teenagers who text while they drive
D) less than the critical value, we cannot reject the null hypothesis and cannot conclude that there is a difference in the proportion of male and female teenagers who text while they drive
D
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a. True b. False Indicate whether the statement is true or false
Which of the following statements is true?
a. Management is more important to an organization. b. Leadership is more important to an organization. c. Both management and leadership are necessary for an effective organization. d. Neither one is necessary for an effective organization if there are informal leaders.
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a. retain them by investing heavily. b. capture as much of their business as possible in the short time they buy from a particular company. c. reduce the cost to serve them by imposing strict cost controls. d. increase the share of these customers' business. e. increase the amount of communication with them.
Neither the employees nor their manager ____ willing to compromise
A) were B) are C) is