You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You decide on the 99% confidence level and a margin of error of 3%. A pilot survey reveals that 8 of the 51 sampled hold two or more jobs. How many in the workforce should be interviewed to meet your requirements? (Round up your answer to the next whole number.) Number of persons to be interviewed
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We are given a 99% confidence level, which means our z-score is 2.576 (from the z-table). Show more…
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