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Standard deviation of the mean of the sampling distribution

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(a) A farmer picks pumpkins from a large field. The farmer makes samples of 300 pumpkins and inspects them. If one in thirty pumpkins are not fit to market and will be saved for seeds, what is the expected value of the mean of the sampling distribution of sample proportions for the number of unfitted pumpkins? What is the corresponding standard deviation of the mean of the sampling distribution?

(b) A store surveys customers to see if they are satisfied with the service they received. Samples of 55 surveys are taken. One in five people are unsatisfied. What is the expected value of the mean of the sampling distribution of sample proportions for the number of unsatisfied customers? What is the corresponding standard deviation of the mean of the sampling distribution of sample proportions

Reference no: EM132404078

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