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(b) At 95% confidence, what is the margin of error? Recall the formula for the margin of error, E, given below where the
Posted: Mon Jul 11, 2022 11:24 am
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- B At 95 Confidence What Is The Margin Of Error Recall The Formula For The Margin Of Error E Given Below Where The 1 (21.16 KiB) Viewed 39 times
(b) At 95% confidence, what is the margin of error? Recall the formula for the margin of error, E, given below where the z value corresponding to an upper tall area of and a confidence level of 1-0. p is the point estimate for the population proportion, and n is the sample size. p(1-P) n There were 356 adults in the survey, so n 2 A margin of error for 95% confidence is needed. Common values for 2 for various confidence levels are given below. E-Z Confidence Level 90% 95% 99% i BIN a 2 0.10 0.05 1.645 0.05 0.025 1.960 0.01 0.005 2.576 and the sample proportion was found to be p0.5618, Now the value of Zar is needed. According to the table, for a 95% confidence level, the necessary value for 2 is 1900