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Question: A Random Sample Of 20 Students Yielded A Mean Of X = 72 And A Variance Of S2 = 16 For Scores On A

Question: A Random Sample Of 20 Students Yielded A Mean Of X = 72 And A Variance Of S2 = 16 For Scores On A College Placement Test In image text in transcribed

A random sample of 20 students yielded a mean of X = 72 and a variance of s = 16 for scores on a college placement test in mathematics. Assuming the scored to be normally distributed, construct a 98% confidence interval for .

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