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Sampling Distribution of a Proportion

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6.30
Given a population in which the proportion of items with a desired attribute is p=0.25, if a sample of 400 is taken:
a. What is the standard deviation of the sampling distribution of _
P?

b. What is the probability the proportion of successes in the sample will be greater tghan 0.22?

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Solution Summary

A step-by-step method for computing sampling Distribution of a Proportion is given in the answer (see attachments).

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