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What is the expected value of the sampling distribution

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Reference no: EM132038334

If the National Center for Education Statistics reports that the proportion of college freshmen who return to the same school for their sophomore year is 0.67, and a random sample of 480 are selected from across the nation...

a.  What is the expected value of the sampling distribution model for the proportion of 480 freshmen that will return to the same school for their sophomore year?

b. What is the standard deviation of the sampling distribution model for the proportion of 480 freshmen that will return to the same school for their sophomore year?

c. What is the probability that the proportion of these 480 freshmen that return to the same school for their sophomore year is less than 0.71?

Reference no: EM132038334

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