When testing whether the mean transaction time is different

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Reference no: EM13815535

A sample of 16 ATM transactions shows a mean transaction time of 67 seconds with a sample standard deviation of 12 seconds.

When testing whether the mean transaction time is different from 60 seconds, what is the test statistic?

Select one:

a. 1.17

b. 2.33

c. 0.58

d. The significance level is needed to answer this question.

Reference no: EM13815535

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