A survey of 499 women revealed that 38% wear flats to work. a. Use this sample information

Question:

A survey of 499 women revealed that 38% wear flats to work.

a. Use this sample information to develop a 99%

confidence interval for the population proportion of women who wear flats to work.

b. Suppose we also wish to estimate the proportion of women who wear athletic shoes to work with a margin of error of 0.01 with 95% confidence.

Determine the sample size required.

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