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Question

O Take a Test Zoe Macons Google Chrome : https://www PlayerTest.aspeltestild-167019187centerwn-yes Secure QMB 3200 RVF Fall 2017 Test: Practice Test for Mid-Term This Question: 1 pt 90120(8 complete) Construct a 95% confidence interval to estimate the population proportion using the data below x- 27 n-95 N 500 The 95% confidence interval for the population proportion is (LLD Round to three decimal places as needed ) Enter your answer in each of the answer boxes 0 data-9-28-2017-2- data-9-28-2017-2

Explanation / Answer

x = 27 and n = 95

so p = 27/95 = 0.284

so the confidence interval is given as

p +-z*sqrt(p*(1-p)/n) , where z = 1.96 for 95% confidence interval from the z tables

0.284 +- 1.96*sqrt(0.284*(1-0.284)/95)

0.193 and 0.374