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# HW4 - a Give the mean and standard deviation of the...

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Math 220 – HW #4 Name ________________________ Due Friday, March 21 Section _______________________ Honor Pledge: I have neither given nor received help from any person on this homework. Signed __________________________ 1. Assume that 30% of students at a university wear contact lenses. Consider the sample proportion of students in a random sample of n = 100 that wear contact lenses. The sampling distribution of the sample proportion gives the set of all possible sample proportions for random samples of size n = 100.
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Unformatted text preview: a. Give the mean and standard deviation of the sampling distribution of the sample proportion. Give the shape of the sampling distribution of the sample proportion. Be sure to check any large sample rules. b. Between what two values would you find almost 100% of sample proportions based on samples of size n = 100. c. What is the probability that in a random sample of size n = 100 more than one third of students wear contacts?...
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