1. The diameter of holes for a cable harness is known to have a normal distribution with a standard deviation of 0.01 inch. A random sample of size 10 yields an average diameter of 1.5045 inch. a....

Extracted text: 1. The diameter of holes for a cable harness is known to have a normal distribution with a standard deviation of 0.01 inch. A random sample of size 10 yields an average diameter of 1.5045 inch. a. Find a 99% two-sided confidence interval on the mean hole diameter. b. Find a 90% two-sided confidence interval on the mean hole diameter. c. Explain the difference of the interval between the two confidence levels.