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TABLE 15-9
Many factors determine the attendance at Major League Baseball games. These factors can include when the game is played, the weather, the opponent, whether or not the team is having a good season, and whether or not a marketing promotion is held. Data from 80 games of the Kansas City Royals for the following variables are collected.
ATTENDANCE = Paid attendance for the game
TEMP = High temperature for the day
WIN% = Team's winning percentage at the time of the game
OPWIN% = Opponent team's winning percentage at the time of the game WEEKEND - 1 if game played on Friday, Saturday or Sunday; 0 otherwise PROMOTION - 1 = if a promotion was held; 0 = if no promotion was held
The regression results using attendance as the dependent variable and the remaining five variables as the independent variables are presented below.
The coefficient of multiple determination ( R 2 j ) of each of the 5 predictors with all the other remaining predictors are,
respectively, 0.2675, 0.3101, 0.1038, 0.7325, and 0.7308.
-Referring to Table 15-9, what are, respectively, the values of the variance inflationary factor of the 5 predictors?
Credit Cards
Plastic cards issued by banks or financial institutions allowing the cardholder to borrow funds for purchases or cash advances.
SJSU Freshmen
First-year undergraduate students enrolled at San Jose State University.
Z-statistic
A statistic that quantifies the number of standard deviations a data point is from the population mean.
Level of Significance
The threshold below which a p-value is considered statistically significant, indicating the probability of wrongly rejecting the null hypothesis.
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