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A pollster wishes to estimate the number of left handed scientists What size sample should be obtained in order to be 98 confident that the

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A pollster wishes to estimate the number of left handed scientists What size sample should be obtained in order to be 98 confident that the sample proportion will not differ from the true proportion by more than 4 A previous study indicates that the proportion of left handed scientists is 12 Round up to the nearest whole number OA 358 B 15 OC 254 OD 406

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