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The mean and standard deviation of the scores of a random sample of 45 Grade 10 students who took the final test are calculated to

The mean and standard deviation of the scores of a random sample of 45 Grade 10 students who took the final test are calculated to be 76 and 12.5, respectively.

a. Find the 95% confidence interval for the mean of the entire Grade 10 students.

b. Find the lower and upper confidence limits.

Topic: Point and Interval Estimation

image text in transcribed
MATH MASH 61. The mean and standard deviation of the scores of a random sample of 45 Grade 10 students who took the final test are calculated to be 76 and 12.5, respectively. a. Find the 95% confidence interval for the mean of the entire Grade 10 students. b. Find the lower and upper confidence limits

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