Author Question: A random sample of 15 crates have a mean weight of 165.2 pounds and a standard deviation of 13.5 ... (Read 90 times)

Chelseaamend · **on:** Jul 24, 2018

A random sample of 15 crates have a mean weight of 165.2 pounds and a standard deviation of 13.5 pounds. Construct a 95 confidence interval for the population standard deviation .

Assume the population is normally distributed, and round to the nearest hundredth when necessary.
A) (97.69, 453.3 ) B) (10.38, 19.71 ) C) (9.88, 21.29 ) D) (2.69, 5.79 )

Question 2

Suppose the candidate pool for two appointed positions includes 6 women and 9 men. All candidates were told that the positions were randomly filled. Find the probability that two men are selected to fill the appointed positions.

A) .143 B) .160 C) .360 D) .343