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Computing the value of test statistic utilizing two-tail's' test as well as interpret the result.

The Commercial Bank as well as Trust Company is studying the use of its automatic teller machines (ATMs). Of specific interest is whether young adults (under 25 years) use the machines more than senior citizens. To examine further samples of customers under 25 years of age also customers over 60 years of age were selected. The number of ATM transactions last month was determined for each selected individual and the results are shown below. At the .01 implication level can bank management conclude that younger customers use the ATMs more?

Beat

Time (minutes)

Prada (Italy)

12.9

12.5

11

13.3

11.2

11.4

11.6

12.3

14.2

11.3

Oracle (U.S.A)

14.1

14.1

14.2

17.4

15.8

16.7

16.1

13.3

13.4

13.6

 

10.8

19

 

 






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