HW10: Problem 9 Previous Problem List Next (1 point) Dylan wants to determine a

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HW10: Problem 9 Previous Problem List Next (1 point) Dylan wants to determine a 80 percent confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must he have to get a margin of error less than 0.02? [To find n, use the value p* 1/2 for the sample proportion and the values for z* from a z-table or t- table.] Round to the smallest integer that works.] n- Preview My Answers Submit Answers You have attempted this problem 0 times You have unlimited attempts remaining. Email instructor 10

Explanation / Answer

here for 80% CI ; critical value of z =1.2816

for margin of errror E =0.02

p=1/2 =0.5

theefore required sample size n=p(1-p)*(z/E)2 =1027

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