a professor wants to estimate the average score of her class in the final exam she randomly sele

Name: a professor wants to estimate the average score of her class in the final exam she randomly selects 40 exams from her class of 200 students the sample mean is 75 points and the standard deviation is 8
Uploaded: 2023-12-22T01:05:45-08:00
Duration: 2 min 5 s
Channel: Lucas Finney
Description: a professor wants to estimate the average score of her class in the final exam she randomly selects 40 exams from her class of 200 students the sample mean is 75 points and the standard deviation is 8

Question

Jen H · Accepted Answer

First, we need to calculate the standard error of the mean. The standard error is calculated by

Question

A professor wants to estimate the average score of her class in the final exam. She randomly selects 40 exams from her class of 200 students. The sample mean is 75 points, and the standard deviation is 8 points. Determine a 95% confidence interval for the average exam score of the class.

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