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# Statistics

A professional auto racing driver was given training in competition driving techniques. His driving times in seconds on five different race tracks were recorded before and after the training. At the 0.01 level of significance, was the training beneficial? State and conduct an appropriate hypothesis test.

Track Before Training After Training
1 226 198
2 706 701
3 559 589
4 975 892
5 280 264

The owner of a Tucson, Arizona sports bar wants to determine if University of Arizona (U of A) college football games on Saturdays are more popular than Arizona Cardinals professional football games on Sunday. He obtained A.C. Neilson data for a recent fall football weekend. On Saturday, 140 households out of 400 contacted were watching the U of A game. On Sunday, 150 households out of 600 contacted were watching the Arizona Cardinals game. At the 5% level of significance, what should he conclude? State and conduct an appropriate hypothesis test.

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