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A Pew Research Center survey of 4,787 adults found that 4,178 had bought something online. Of...

A Pew Research Center survey of 4,787 adults found that 4,178 had bought something online. Of these online shoppers, 789 are weekly online shoppers. a. Construct a 95% confidence interval estimate of the population proportion of adults who had bought something online. b. Construct a 95% confidences interval estimate of the population proportion of online shoppers who are weekly online shoppers. c. How would the director of e-commerce sales for a company use the results of (a) and (b)?

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