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A Study of 45 Professors Showed That the Average Time

Question 38

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A study of 45 professors showed that the average time they spent creating test questions was 15.5 minutes per question. The standard deviation of the population is 5.8. Which of the following is the 98% confidence interval for the average number of minutes it takes to create a test question?

A) A study of 45 professors showed that the average time they spent creating test questions was 15.5 minutes per question. The standard deviation of the population is 5.8. Which of the following is the 98% confidence interval for the average number of minutes it takes to create a test question? A) B) C) D)
B) A study of 45 professors showed that the average time they spent creating test questions was 15.5 minutes per question. The standard deviation of the population is 5.8. Which of the following is the 98% confidence interval for the average number of minutes it takes to create a test question? A) B) C) D)
C) A study of 45 professors showed that the average time they spent creating test questions was 15.5 minutes per question. The standard deviation of the population is 5.8. Which of the following is the 98% confidence interval for the average number of minutes it takes to create a test question? A) B) C) D)
D) A study of 45 professors showed that the average time they spent creating test questions was 15.5 minutes per question. The standard deviation of the population is 5.8. Which of the following is the 98% confidence interval for the average number of minutes it takes to create a test question? A) B) C) D)

A Study of 45 Professors Showed That the Average Time

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