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(Solved): A study conducted several years ago reported that 21 percent of public accountants changed companie ...



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A study conducted several years ago reported that 21 percent of public accountants changed companies within 4 years. The American Institute of CPAs would like to update the study. They would like to estimate the population proportion of public accountants who changed companies within 4 years with a margin of error of and a level of confidence. (Use Distribution Table \& Distribution Table.) (Round your -value to 2 decimals. Round up your answers to the next whole number.) Required: a. To update this study, the files of how many public accountants should be studied?


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a. Sample size
We know that the margin of error (E) is 4%, and we want to be 98% confident in...
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