The following data represent the times recorded by nine 100yard backstroke swimmers, in seconds, before and after

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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 Î± = 0.05, perform a hypothesis test to determine if the new program effectively reduced swimming times for the 100yard backstroke.

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Business Statistics

ISBN: 9780321925121

2nd Edition

Authors: Robert A. Donnelly

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Question Posted: Jul 29, 2015 05:30 AM

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The following data represent the times recorded by nine 100yard backstroke swimmers, in seconds, before and after

Question:

Swimmer 2 3 4 5 6 7 8 9 Before 75 76 67 72 73 66 63 72 69 71 74 65 68 72 70 60 67 65 Afler 71 74 65 6 72 70 60 57

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H 0 Swimming times are not higher before the program H 1 Swimming tim...View the full answer

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