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About 8% of men of Northern European ancestry have red-green colorblindness, which results from a defect...

About 8% of men of Northern European ancestry have red-green colorblindness, which results from a defect in a gene on the X chromosome. (Women with a defective gene on one X chromosome and a functional gene on their other X chromosome do not have red-green colorblindness.) If a random sample of size 75 men of Northern European ancestry are chosen:

a) What is the expected value of the sample proportion pˆ with red-green color blindness?

b) What is the standard deviation of pˆ ?

c) Can we assume that the sampling distribution of pˆ is approximately normal curve? Explain.

Math   Statistics-And-Probability   
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