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8. A study of 35...

8. A study of 35 golfers showed that their average score in particular course saw 92. The standard deviation of the sample is 5. Find the 95% confidence interval of the mean score if a sample of 60 golfers is used instead of of a sample.

A) 89 95 ; B) 90 94 ; C) 91 94 ; D) 92 95

A) 89 95 ; B) 90 94 ; C) 91 94 ; D) 92 95

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