Question

The table below shows the heights, in inches, of 15 randomly selected National Basketball Association (NBA) players and 15 randomly selected Division I National Collegiate Athletic Association (NCAA) players.

NBA | 85 | 76 | 80 | 76 | 82 | 82 | 76 | 86 |
---|---|---|---|---|---|---|---|---|

78 | 79 | 79 | 79 | 84 | 75 | 77 | ||

NCAA | 79 | 73 | 74 | 79 | 77 | 77 | 75 | 75 |

75 | 81 | 76 | 79 | 79 | 80 | 74 |

Using the same scale, draw a box-and-whisker plot for each of the two data sets, placing the second plot below the first.

Write a valid conclusion based on the data.

The median height of an NCAA player is very close to the third-quartile height of an NBA player.The third-quartile height of an NBA player is very close to the first-quartile height of an NCAA player. The median height of an NBA player is very close to the median height of an NCAA player.The median height of an NBA player is very close to the third-quartile height of an NCAA player.

Answer #1

1.)The graduation rate of college students is a subject of
considerable interest and is a frequent topic in the news.
College/university administrators use the graduation rate as a
barometer of student success at their respective institution. State
legislators are interested in the graduation rate since most states
subsidize the cost of educating each in-state student at public
universities and colleges.
Graduation rates are also used to evaluate university athletic
programs. Athletic directors do not relish the negative publicity
that results...

1. A city official claims that the proportion of all commuters
who are in favor of an expanded public transportation system is
50%. A newspaper conducts a survey to determine whether this
proportion is different from 50%. Out of 225 randomly chosen
commuters, the survey finds that 90 of them reply yes when asked if
they support an expanded public transportation system. Test the
official’s claim at α = 0.05.
2. A survey of 225 randomly chosen commuters are asked...

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