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April 20, 2014

Homework Help: Stats

Posted by Manda on Wednesday, November 9, 2011 at 10:07pm.

A large company has found that 40% of it employees own their own homes.
a.) If we randomly select a sample of 20 employees, what is the probability that the sample proportion that own their homes is over 50%?

b.) If we randomly select a sample of 40 employees, what is the probability that the sample proportion that own their homes in over 50%?

c.) If we randomly select a sample of 20 employees, what is the probability that the sample proportion that own their homes is between 30% and 50%?


Thanks!

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