A sample of 22 students had an average of 60 points in an 80-item test. The standard deviation of the population is not known, but the standard deviation of the sample is 10. Construct a 99% confidence interval on the average score of all students who took the test. Select the correct response: none of the choices 55.57 points to 64.43 points 53.31 points to 66.69 points 54.86 points to 65.14 points

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