=+31. A manufacturer of exercise equipment is interested in estimating the proportion of all purchasers of
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=+31. A manufacturer of exercise equipment is interested in estimating the proportion of all purchasers of one of its products who still own the product two years after purchase. What sample size is required to estimate this proportion to within .05 with a confidence level of 90%?
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Related Book For 
Applied Statistics For Engineers And Scientists
ISBN: 9781133111368
3rd Edition
Authors: Jay L. Devore, Nicholas R. Farnum, Jimmy A. Doi
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