Confidence interval for mean number-transactions per month

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Reference no: EM13140676

Finite Population Correction Factor: Huntington installed an ATM in the corporate offices of Fun Toy Co. The ATM is for the exclusive use of Fun's 605 employees. After several months of operation, a sample of 100 employees revealed the following use of the ATM machine by Fun employees in a month.

# of Times
ATM Used Frequency
0 25
1 30
2 20
3 10
4 10
5 5

a) What is the estimate of the proporation of employees who do not use the ATM in a month?
b) Develop a 95 percent confidence interval for this estimate. Can Huntington be sure that at least 40 percent of the employees of Fun Toy Company will use the ATM?
c) How many transactions does the average Fun employee make per month
d) Develop a 95 percent confidence interval for the mean number of transactions per month.
e) Is it possible that the population mean is .7? explain.

Reference no: EM13140676

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