Homework SourseA recent article reported that there are approximately 11 mi
A recent article reported that there are approximately 11 minutes of actual playing time in a typical National Football League (NFL) game (The Wall Street Journal, January 15, 2010). The article included information about the amount of time devoted to replays, the amount of time devoted to commercials, and the amount of time the players spend standing around between plays. Data consistent with the findings published in The Wall Street Journal are in the WEBfile named Standing. These data provide the amount of time players spend standing around between plays for a sample of 60 NFL games. Click on the webfile logo to reference the data.
a. Use the Standing data set to develop a point estimate of the number of minutes during an NFL game that players are standing around between plays. Round your answer to two decimal places.
Compare this to the actual playing time reported in the article. Are you surprised?
The input in the box below will not be graded, but may be reviewed and considered by your instructor.
b. What is the sample standard deviation? Round your answer to four decimal places.
minutes
c. Develop a 95% confidence interval for the number of minutes players spend standing around between plays. Round your answers to two decimal places.
| Minutes Standing Around |
| 64.22 |
| 51.73 |
| 73.07 |
| 66.77 |
| 66.57 |
| 61.26 |
| 59.71 |
| 69.33 |
| 65.04 |
| 72.77 |
| 62.74 |
| 67.13 |
| 63.64 |
| 75.12 |
| 69.92 |
| 66.44 |
| 69.06 |
| 68.43 |
| 62.21 |
| 66.07 |
| 72.6 |
| 65.8 |
| 62.5 |
| 63.59 |
| 69.02 |
| 69.95 |
| 72.6 |
| 63.53 |
| 69.05 |
| 64.98 |
| 64.89 |
| 62.93 |
| 67.96 |
| 65.97 |
| 72.86 |
| 67.52 |
| 73.09 |
| 75.31 |
| 68.83 |
| 71.88 |
| 63.33 |
| 64.47 |
| 63.34 |
| 69.43 |
| 60 |
| 70.69 |
| 61.75 |
| 56.32 |
| 73.72 |
| 69.66 |
| 66.39 |
| 69.41 |
| 66.72 |
| 64.55 |
| 68.1 |
| 69.33 |
| 65.62 |
| 67.92 |
| 70.16 |
| 68.92 |
Solution
