Solved: We want to test a claim that we have reduced the average, Basic Statistics

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We want to test a claim that we have reduced the average

We want to test a claim that we have reduced the average wait time at our bank from year one to year two. We have a sample of 40 wait times from each year, but the average and standard deviations for each year are not known. Which statistical test would we use to draw our hypothesis conclusion?

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Basic Statistics: We want to test a claim that we have reduced the average

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