Question

In: Statistics and Probability

An article stated, "Surveys tell us that more than half of America's college graduates are avid...

An article stated, "Surveys tell us that more than half of America's college graduates are avid readers of mystery novels." Let p denote the actual proportion of college graduates who are avid readers of mystery novels. Consider a sample proportion p̂ that is based on a random sample of 210 college graduates.

(a) If p = 0.6, what are the mean value and standard deviation of p̂? (Round your answers to four decimal places.)

If p = 0.7, what are the mean value and standard deviation of p̂? (Round your answers to four decimal places.)

(b) Calculate P(p̂ ≥ 0.7) for p = 0.6. (Round your answer to four decimal places.)

Calculate P(p̂ ≥ 0.7) for p = 0.7.

Expert Solution

a) If p = 0.6,

The mean value of is =

The standard deviation of is =

If p = 0.7,

The mean value of is =

The standard deviation of is =

b) If p = 0.6,

Now,

If p = 0.7,

Now,

orchestra answered 2 years ago

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