Business, 05.06.2021 15:40 njorda7211

A bank installed an ATM. After several months of operation, a sample of 100 customers showed the following use of the ATM in a month. Number of Times ATM Used / Frequency
0 / 25
1 / 30
2 /20
3 /10
4 /10
5 /5

a. What is the estimate of proportion of customers who do not use the ATM in a month?

b. Develop 95 percent confidence interval for this estimate. Can the bank be sure that at least 40% of customers will use the ATM?

Answers: 2

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A bank installed an ATM. After several months of operation, a sample of 100 customers showed the fol...

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