Define additional number of patients that need to be sampled

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Question: Suppose a hospital would like to estimate the proportion of patients who feel that physicians who care for them always communicated effectively when discussing their medical care. A pilot sample of 50 patients found that 32 reported that their physician communicated effectively. Determine the additional number of patients that need to be sampled to construct a 95?% confidence interval with a margin of error equal to 22?% to estimate this proportion. The additional number of patients that need to be sampled is ( ). ?(Round up to the nearest? integer.)

Reference no: EM131889903

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