What is the shape mean expected value and standard

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Reference no: EM13627659

Assume that the population proportion of all business professionals who select an airline based on price is 0.25. A random sample of 225 business professionals is to be taken for further study.

A) What is the shape, mean (expected value), and standard deviation of the sampling distribution of the sample proportion for samples of size 225?

B) What is the probability that our sample of 225 results in a sample proportion that falls within 3 percent (+/- .03) of the population value?

Reference no: EM13627659

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