A random sample of 25 statistics examinations was taken. The average score in the sample was 76 with a variance of 144. Assuming the scores are normally distributed, the 99% confidence interval for the population average examination score is
A)70.02 to 81.98
B)69.82 to 82.18
C)70.06 to 81.94
D)69.48 to 82.52

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The Answer of A random sample of 25 statistics examinations was taken. The average score in the sample was 76 with a variance of 144. Assuming the scores are normally distributed, the 99% confidence interval for the population average examination score is
A)70.02 to 81.98
B)69.82 to 82.18
C)70.06 to 81.94
D)69.48 to 82.52

A Random Sample of 25 Statistics Examinations Was Taken