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OpenStudy (anonymous):
A study of 35 golfers showed that their average score on a particular course was 92. The standard deviation of the population 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. c) which interval is smaller? Explain why?
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