How many students would have to take examination toensure

Reference no: EM13326285

Suppose that from the past experience a professor knows that the test score of a student taking his final examination is arandom variable with mean 70 and standarddeviation 85 How many students would have to take the examination toensure, with probability at least 094 , that the class average would be within15 of 70 ?

Reference no: EM13326285

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