Mathematics, 17.10.2019 07:30, thedeathlord123

5.14 coupons driving visits: a store randomly samples 488 shoppers over the course of a year and finds that 142 of them made their visit because of a coupon they'd received in the mail.
( round all proportions to four decimal places)

a) construct a 95% confidence interval for the fraction of all shoppers during the year whose visit was because of a coupon they'd received in the mail.

to

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5.14 coupons driving visits: a store randomly samples 488 shoppers over the course of a year and fi...