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A study of 35 golfers showed that their average score on a particular course was 92.The standard deviation of the sample is 5.

A. Find the best point estimate of the mean.

B. Find the 95% confidence interval of the mean score for all golfers.

C. Find the 95% confidence interval of the mean score if a sample of 60 golfers is used instead of a sample of 35.

 

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