A sample of 85 golfers showed that their average score on a particular golf course was 91.31 with a standard deviationof 5.37.
Answer each of the following (show all work and state the final answer to at least two decimal places.
(A) Find the 99% confidence intervalof the meanscore for all 85 golfers.
(B) Find the 99% confidence interval of the mean score for all golfers if this is a sample of 120 golfers instead of a sample of 85.
(C) Which confidence interval is smaller and why?
This solution provides a detailed, step by step calculation of the given statistics problem.