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Statistics / Statistical Techniques in Business and Economics 15 / Chapter 11 / Problem 62

Statistical Techniques in Business and Economics | 15th Edition | ISBN: 9780073401805 | Authors: Douglas Lind, William Marchal, Samuel Wathen

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Get solution: Refer to the Baseball 2009 data, which report information on the 30 Major

Chapter 0, Problem 62

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QUESTION:

Refer to the Baseball 2009 data, which report information on the 30 Major League Baseball teams for the 2009 season. a. At the .05 significance level, can we conclude that there is a difference in the mean salary of teams in the American League versus teams in the National League? b. At the .05 significance level, can we conclude that there is a difference in the mean home attendance of teams in the American League versus teams in the National League? c. Compute the mean and the standard deviation of the number of wins for the 10 teams with the highest salaries. Do the same for the 10 teams with the lowest salaries. At the .05 significance level, is there a difference in the mean number of wins for the two groups?

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QUESTION:

Refer to the Baseball 2009 data, which report information on the 30 Major League Baseball teams for the 2009 season. a. At the .05 significance level, can we conclude that there is a difference in the mean salary of teams in the American League versus teams in the National League? b. At the .05 significance level, can we conclude that there is a difference in the mean home attendance of teams in the American League versus teams in the National League? c. Compute the mean and the standard deviation of the number of wins for the 10 teams with the highest salaries. Do the same for the 10 teams with the lowest salaries. At the .05 significance level, is there a difference in the mean number of wins for the two groups?

ANSWER:

Step 1 of 5

Given:

The Baseball 2009 data is provided.

The number of Major League Baseball teams for the 2009 season is 30.

The variables are,

=Team

= League (American=1, National=0)

= Built (year stadium was built)

= Size (stadium capacity)

= Salary (total 2009 team salary, $ millions)

= Wins

= Attendance (total for team in millions)

= BA (team batting average)

= ERA (team earned run average)

=HR (team home runs)

= Errors (team errors)

= SB (team stolen bases)

= Year

= Average player salary ($)

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