document.write( "Question 468938: You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You decide on the 95 percent confidence level and state that the estimated proportion must be within 2 percent of the population proportion. A pilot survey reveals that 5 of the 50 sampled hold two or more jobs. How many in the workforce should be interviewed to meet your requirements?
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Algebra.Com's Answer #321726 by stanbon(75887)\"\" \"About 
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You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You decide on the 95 percent confidence level and state that the estimated proportion must be within 2 percent of the population proportion. A pilot survey reveals that 5 of the 50 sampled hold two or more jobs. How many in the workforce should be interviewed to meet your requirements?\r
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\n" ); document.write( "n = [z/E]^2 *pq
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\n" ); document.write( "n = [1.96/0.02]^2*(1/10)(9/10)
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\n" ); document.write( "n = 865 when rounded up
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