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https://www.mathed.com/ statistics 5th Edition Teat est aspx?testlda 152372974 STA220 10Z3 Galloway Quiz: Chapter 9 Review Quiz Time Remaining: 01 og 33 This Question: 1 pt 1 of 12 (o complete) This Quiz: 12 pts possible Question Help Determine the point estimate of the population margin of error for the following confidence interval, and the number of individuals in the sample with the specified characteristic. the he sample size provided. Lower bound 0.219, upper bound -0.551, n 1200 The point estimate of the population proportion is (Round to nearest thousandth as eded.) The margin of error is (Round to the nearest thousandth as needed.) The number DE individuals in the sample with the specified characteristic is (Round to the nearest integer as needed.) Enter your answer in each of the answer boxes.Explanation / Answer
Lower bound = .219
Upper bound = .551
n = 1200
Point estimate of pop. proportion = Lower+upper bounds/2 = .219+.551/2 = .790/2 = .395
Margin of error = .395 - .219 = .176
No. of individuals in sample with spec. char = np = .395*1200= 474
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