Question: A car manufacturer worried about how increasing gasoline prices are
A car manufacturer, worried about how increasing gasoline prices are going to affect sales, wants to estimate the percentage of the adult population in Canada who would consider buying a hybrid vehicle for their next purchase. How big a sample size should the manufacturer take if the company wants to estimate the proportion to within 2% and the manufacturer is fairly certain that the proportion is in the neighbourhood of 10%? The desired confidence level is 95%.
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