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Standard deviation of the sampling distribution

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Reference no: EM131719883

A recent report stated that 15% (0.15) of all men in the U.S. are left-handed. A random sample of 250 men is selected to further study this question,

A. What is the Shape, Mean (expected value) and standard deviation of the sampling distribution of the sample proportion for samples of size 250?

B. What is the probability that the sample proportion for a sample of size 250 is greater than 10% (0.10)?

C. What is the probability that the sample proportion for a sample of size 250 is between 12% (0.12) and 18% (0.18)?

Reference no: EM131719883

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