# Question

The following data represent the number of passengers per flight in a random sample of 20 flights from Vienna, Austria, to Cluj-Napoca, Romania, with a new airline:

a. What is the reliability factor for a 90% confidence interval estimate of the mean number of passengers per flight?

b. Find the LCL for a 99% confidence interval estimate of the mean number of passengers per flight.

a. What is the reliability factor for a 90% confidence interval estimate of the mean number of passengers per flight?

b. Find the LCL for a 99% confidence interval estimate of the mean number of passengers per flight.

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