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 30 reported that their physician communicated effectively. Determine the additional number of patients that need to be sampled to construct a 99% confidence interval with a margin of error equal to 4% to estimate this proportion. The additional number of patients that need to be sampled is

          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 30 reported that their
physician communicated effectively. Determine the additional number
of patients that need to be sampled to construct a 99% confidence
interval with a margin of error equal to 4% to estimate this
proportion.
The additional number of patients that need to be sampled is

Added by Wayne F.

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