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Section IV: Use this scenario for your answers to questions 31-35. Each question is worth 4 points; Total = 20 A producer of computer-aided design software for the aerospace industry has a technical support call center that receives hundreds of calls per week. The company serves military customers and civilian customers as well. It wants to know whether the average response time to these two classes of customers is the same or different. Over the course of a month, the company randomly tracks the response times of both classes of customers. The company collected a random sample of 36 military customers and found the average response time was 19 minutes with a standard deviation of 6 minutes. The company also collected a random sample of 50 civilian customers and found the average response time was 23 minutes with a standard deviation of 10 minutes. With 95% confidence can the company conclude the average response time of the two customer groups is different? 31 What is the NULL HYPOTHESIS? (in words or as a mathematical expression) 32. What is the ALTERNATIVE HYPOTHESIS? (in words or as a mathematical expression) 33. What is the hypothesis test equation that the company must calculate to solve this problem? 34. Using the formula in #33 above, or the Excel Utility, calculate the answer to this problem (calculate z statistic and corresponding p value). Show your work below. 35. With 95% confidence, can the company conclude the average response times of the two customer groups is different? Explain your answer in terms of the p-value and significance level associated with this problem.

Section IV: Use this scenario for your answers to questions 31-35.
Each question is worth 4 points; Total = 20
A producer of computer-aided design software for the aerospace industry has a technical support call center that receives hundreds of calls per week. The company serves military customers and civilian customers as well. It wants to know whether the average response time to these two classes of customers is the same or different. Over the course of a month, the company randomly tracks the response times of both classes of customers. The company collected a random sample of 36 military customers and found the average response time was 19 minutes with a standard deviation of 6 minutes. The company also collected a random sample of 50 civilian customers and found the average response time was 23 minutes with a standard deviation of 10 minutes. With 95% confidence can the company conclude the average response time of the two customer groups is different?
31 What is the NULL HYPOTHESIS? (in words or as a mathematical expression)
32. What is the ALTERNATIVE HYPOTHESIS? (in words or as a mathematical expression)
33. What is the hypothesis test equation that the company must calculate to solve this problem?
34. Using the formula in #33 above, or the Excel Utility, calculate the answer to this problem (calculate z statistic and corresponding p value). Show your work below.
35. With 95% confidence, can the company conclude the average response times of the two customer groups is different? Explain your answer in terms of the p-value and significance level associated with this problem.

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