Question: Question 14 1. Find the 90% confidence interval for the standard deviation for the time it takes an inspector to check a bus for safety

Question 14 1. Find the 90% confidence interval for the standard deviation for the time it takes an inspector to check a bus for safety if a sample of 27 buses has a standard deviation of 6.8 minutes. Assume the variable is normally distributed. a. 4.6 (K 12 2. b. 30.9 (K 78.2 c. 5.6 (K 8.8 d. 21.6 (K 43.9

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