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Imagine our population of interest is all of the students who took a statsquiz. The average...

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Statistics

Imagine our population of interest is all of the students whotook a statsquiz. The average quiz score from all of the studentsin the class was 85 and the variance was 5. Imagine we could selectseveral different samples from this population of 85 students. Whatwould the standard deviation of the sampling distribution of themean be for N=5?

A set of phones are normally distributed with a mean of900 dollars and a standard deviation of 70 dollars. What proportionof phone prices are between 650 dollars and 925dollars?

If the score variance were 40 and the error variance were 22,then the reliability would be?

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