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Given a sample size of 27, standard deviation of 2.9, and a sample average of 21.92, a 95% prediction interval would be between ____ and

Given a sample size of 27, standard deviation of 2.9, and a sample average of 21.92, a 95% prediction interval would be between ____ and _____. (Answer to two decimal places)

a) 13.65 and 30.19

b) 16.86 and 26.98

c) 15.85 and 27.99

d) 30 and 50

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