Question: The following data represent the times recorded by nine 100yard

The following data represent the times recorded by nine 100yard backstroke swimmers, in seconds, before and after they participated in a new training program. These data can also be found in the Excel file backstroke.xlsx.
Using α = 0.05, perform a hypothesis test to determine if the new program effectively reduced swimming times for the 100yard backstroke.

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  • CreatedJuly 29, 2015
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