NOTE\\ p.2.5 doesn’t need to be answered. P. 2.5 In the 2012 National Football L

Question

NOTE p.2.5 doesn’t need to be answered. P. 2.5 In the 2012 National Football League (NFL) season, the first three weeks 'games were played with replacement referees because of a labor dispute between the NFL and its regular referees. Many fans and players were concerned with the quality of the replacement referees performance. We could examine whether data might reveal any differences between the three weeks' games played with replacement referees and the next three weeks' games that were played with regular referees. For example, did games generally take less or more time to play with replacement referees than with regular referees? The pair of P.2.5 dotplots displays data Replacement 1700 190 210 220 230 240 Duration (mins) EXERCISE P.2.5 P. 2.6 Refer to Exercise P.2.5. The pair of P.2.6 dotplots displays data on the total number of penalties called in the game, again separated by the type of referee. Summarize 12 15 18 21 24 Total penalties EXERCISE P.2.6

Explanation / Answer

From the analysis we can see that

1.846619

The standard deviation of the replacmeent refs is higher indicating a poor quality .

#penalties Regular Replacement 1 0 0 2 1 1 3 0 0 4 0 0 5 0 0 6 2 3 7 1 1 8 2 2 9 3 3 10 5 7 11 4 2 12 8 3 13 3 4 14 2 2 15 1 2 16 1 4 17 3 3 18 4 5 19 1 1 20 0 0 21 0 0 22 0 0 23 1 2 24 0 3 25 1 0 Average 1.72 1.92 Standard Deviation 1.968925

1.846619

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