Maurice Tutor

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Teaching Since: May 2017
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 02 Jan 2018 My Price 7.00

proportion of college

The article “Thrillers” (Newsweek, April 22, 1985) 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 p ⁄ that is based on a random sample of 225 college graduates.

a. If p = .5, what are the mean value and standard deviation of p ⁄ ? Answer this question for p = .6. Does p ⁄ have approximately a normal distribution in both cases? Explain.

b. Calculate P(p ⁄  .6) for both p = .5 and p = .6.

c. Without doing any calculations, how do you think the probabilities in Part (b) would change if n were 400 rather than 225?

 

Answers

Maurice Tutor
(5)
Status NEW Posted 02 Jan 2018 09:01 PM My Price 7.00

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