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The company has just hired 31 new management trainees

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Unformatted text preview: ssigned to the second training method. After three months of training, the management trainees took a standardized test. The test was designed to evaluate their performance and learning from training. The sample mean score and sample standard deviation of the two methods are given below. The management wants to determine if the company should implement the new training method. What is the absolute value of the rejection point (critical value of the test statistic) at α = .01? A. 2.462 B. 2.045 C. 2.453 D. 2.326 105. A fast food company uses two management-training methods. Method 1 is a traditional method of training and Method 2 is a new and innovative method. The company has just hired 31 new management trainees. 15 of the trainees are randomly selected and assigned to the first method, and the remaining 16 trainees are assigned to the second training method. After three months of training, the management trainees took a standardized test. The test was designed to evaluate their performance and learning from training. The sample mean score and sample standard deviation of the two methods are given below. The management wants to determine if the company should implement the new training method. What is the sample value of the test statistic? (Assume equal population variances) A. -1.779 B. -2.311 C. -4.317 D. -0.830 1-844 Chapter 01 - An Introduction to Business Statistics 106. A fast food company uses two management-training methods. Method 1 is a traditional method of training and Method 2 is a new and innovative method. The company has just hired 31 new management trainees. 15 of the trainees are randomly selected and assigned to the first method, and the remaining 16 trainees are assigned to the second training method. After three months of training, the management trainees took a standardized test. The test was designed to evaluate their performance and learning from training. The sample mean score and sample standard deviation of the two methods are given below. The management wants to determine if the company should implement the new training method. Is there evidence at α = .05 to conclude that the new training method is more effective than the traditional training method? A. Yes, there is evidence to reject the null hypothesis B. No, there is not sufficient evidence to reject the null hypothesis 107. A fast food company uses two management-training methods. Method 1 is a traditional method of training and Method 2 is a new and innovative method. The company has just hired 31 new management trainees. 15 of the trainees are randomly selected and assigned to the first method, and the remaining 16 trainees are assigned to the second training method. After three months of training, the management trainees took a standardized test. The test was designed to evaluate their performance and learning from training. The sample mean score and sample standard deviation of the two methods are given below. The management wants to determine if the company should implement the new training method. Is there evidence at α = .01 to conclude that the new training method is more effective than the traditional training method? A. Yes, there is evidence to reject the null hypothesis B. No, there is not sufficient evidence to reject the null hypothesis 1-845 Chapter 01 - An Introduction to Business Statistics 108. In an opinion survey, a random sample of 1000 adults from the U.S.A and 1000 adults from Germany were asked whether they supported the death penalty. 590 American adults and 560 German adults indicated that they supported the death penalty. The researcher wants to know if there is sufficient evidence to conclude that the proportion of adults who support the death penalty is higher in the U.S.A. than in Germany. What is the rejection point (critical value of the test statistic) at = .10? A. 1.96 B. 2.33 C. 1.28 D. 1.645 109. In an opinion survey, a random sample of 1000 adults from the U.S.A and 1000 adults from Germany were asked whether they supported the death penalty. 590 American adults and 560 German adults indicated that they supported the death penalty. The researcher wants to know if there is sufficient evidence to conclude that the proportion of adults who support the death penalty is higher in the U.S.A. than in Germany. What is the rejection point (critical value of the test statistic) at = .05? A. 1.96 B. 2.33 C. 1.28 D. 1.645 110. In an opinion survey, a random sample of 1000 adults from the U.S.A and 1000 adults from Germany were asked whether they supported the death penalty. 590 American adults and 560 German adults indicated that they supported the death penalty. The researcher wants to know if there is sufficient evidence to conclude that the proportion of adults who support the death penalty is higher in the U.S.A. than in Germany. What is the sample value of the test statistic? A. 0.607 B. 1.358 C. 2.745 D. 1.919 1-846 Chapter 01 - An Introduction to Business Statistics 111. In an opinion survey, a random sample...
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