Mathematics, 11.06.2020 23:57 EMQPWE
A bank wants to attract new customers for its credit card. The bank tries two different approaches in the marketing campaign. The first promises a cash back reward; the second promises low interest rates. A sample of 500 people is called the first brochure; of these, 100 get the credit card. A separate sample of 500 people is called the second brochure; 125 get the credit card. The bank wants to know if the two campaigns are equally attractive to customers. What is a 95% confidence interval for the difference in the two proportions
Answers: 1
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A bank wants to attract new customers for its credit card. The bank tries two different approaches i...
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Mathematics, 16.07.2019 09:30
History, 16.07.2019 09:30