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 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 level.

UPL=____

LPL=____

Answer #1

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...

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 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...

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

0.8 Predicting NFL wins. Consider the following model for
predicting the number of games that a National Football League
(NFL) team wins in a season: Wins=3.6+0.5PF−0.3PA+∈
where PF stands for average points a team scores per game over
an entire season and PA stands for points allowed per game. Each
team plays 16 games in a season.
a. Identify the response variable in this model. Is it
quantitative or categorical?
b. Identify the explanatory variables in this model. Are they...

The National Football League (NFL) records a variety of
performance data for individuals and teams. To investigate the
importance of passing on the percentage of games won by a team, the
following data show the conference (Conf), average number of
passing yards per attempt (Yds/Att), the number of interceptions
thrown per attempt (Int/Att), and the percentage of games won
(Win%) for a random sample of 16 NFL teams for a
season
Team
Conf
Yds/Att
Int/Att
Win%
Arizona Cardinals
NFC
6.4...

Delta airlines case study
Global strategy. Describe the current global
strategy and provide evidence about how the firms resources
incompetencies support the given pressures regarding costs and
local responsiveness. Describe entry modes have they usually used,
and whether they are appropriate for the given strategy. Any key
issues in their global strategy?
casestudy:
Atlanta, June 17, 2014. Sea of Delta employees and their
families swarmed between food trucks, amusement park booths, and
entertainment venues that were scattered throughout what would...

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