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Calculate the population variance x

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It is known that the number of weekly hours of exercise made by students of a certain university is distributed normally with standard deviation X. The average number of weekly hours of exercise made by students of that university was made using confidence intervals and it turned out to be: 11.78 , 14.22. We know that the confidence level is 94% and a sample size of 52. Calculate the population variance X.

Reference no: EM132529653

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