Question: QUESTION 2 Question A2: In answering Question A1, why is it reasonable to use a standard normal distribution to find the confidence interval? a. We

QUESTION 2 Question A2: In answering Question A1, why is it reasonable to use a standard normal distribution to find the confidence interval? a. We can assume the distribution of service times is normal. b. The confidence level is close to 100% c. The mean of the sample is more than 30. d The standard deviation is given. e. The sample size is more than 30

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