SOLUTION: You plan to construct a 96% percent confidence interval for the true proportion of students who attempted a review quiz more than 4 times. Assume that you will be able to use a Sim
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Question 1076942: You plan to construct a 96% percent confidence interval for the true proportion of students who attempted a review quiz more than 4 times. Assume that you will be able to use a Simple Random Sample.
(a) What is the critical value for such a confidence interval? Give your answer to three decimal places.
(b) What is the minimum sample size required to get a margin of error less than 0.04?
n =
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
z=2.053
for minimum sample size use p=0.5 which maximizes the interval
0.04=2.053*sqrt(p*(1-p))/n
square both sides and multiply by n
0.0016n=1.0537
n=658.56=659
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