Mathematics, 04.03.2021 22:40 jamesmith20
A bank wonders if omitting the annual credit card fee for customers who charge at least $2400 in a year will increase the amount charged on its credit cards. The bank makes this offer to an SRS of 200 of its credit card customers. It then compares how much these customers charge this year with the amount that they charged last year. The mean increase in the sample is $332, and the standard deviation is $108.
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A bank wonders if omitting the annual credit card fee for customers who charge at least $2400 in a y...
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