Question

The following table shows the number of wins eight teams had during a football season. Also shown are the average points each team scored per game during the season. Construct a 90% prediction interval to estimate the number of wins for teams that scored an average of 25 points a game.

Determine the upper and lower limits of the prediction interval.

UPL = ?

LPL = ?

Data:

Points_per_Game | Wins |

26.3 | 11 |

20.2 | 9 |

24.3 | 6 |

28.2 | 12 |

13.7 | 5 |

23.9 | 9 |

22.1 | 14 |

24.5 | 11 |

Answer #1

The statistical software output for this problem is:

Hence,

90% PI will be:

UPL = **16.0064**

LPL = **4.9054**

The following table shows the number of wins eight teams had
during a football season. Also shown are the average points each
team scored per game during the season. Construct a 90% prediction
interval to estimate the number of wins for teams that scored an
average of 28 points a game.
Points per Game Wins
25.3 12
18.9 8
20.4 3
24.4 9
12.4 1
22.5 5
22.3 11
23.9 8
Determine the upper and lower limits of the prediction...

The number of wins in a season for 16 randomly selected
professional football teams are listed below. Construct a 99%
confidence interval for the true mean number of wins in a season.
Assume that s is 2.6. Round to three decimal places. 9 9 9 8 10 9 7
2 11 10 6 4 11 9 8 8
(a) Determine x-bar Answer.
(b) Find the Critical Value Answer.
(c) What is the margin of error? Answer
(d) Calculate and interpret...

Consider observations of the number of wins per season by
National Football League teams over the years 1989-2008. The
observed mean is 8 wins/season and the observed standard deviation
is 3.02. A histogram illustrates these data.
Referring to these NFL data the z-score for 11 wins is?
Group of answer choices
a. None of these options
b. 1.32
c. 0.33
d. 0.99
e. 0.66

The table below shows the number of interceptions thrown during
the season by seven randomly selected National Football League
teams and the number of games those teams won during the
season.
Wins
Interceptions
2
20
5
18
10
15
13
6
10
8
8
24
8
10
Find the correlation coefficient for this
data:
Group of answer choices
0.53
-67.82
67.82
-0.53

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