A sample of 25 students from a Faculty has been obtained to estimate the average grade of the students' records in the Faculty. It is known from other courses that the standard deviation of the scores in said Faculty is 2.01 points. The mean of the sample was 4.9. Construct a 99% Confidence Interval for the average of the students' grades.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A sample of 25 students from a Faculty has been obtained to estimate the average grade of the students' records in the Faculty. It is known from other courses that the standard deviation of the scores in said Faculty is 2.01 points. The mean of the sample was 4.9. Construct a 99% Confidence Interval for the average of the students' grades.

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