# Analysis of Baseball data.

46. Refer to the Baseball 2002 data, which reports information on the 30 Major League Baseball teams for 2002 season.

a. At the .10 significance level, is there a difference in the variation of the number of stolen bases among the teams that play their home games on natural grass versus on artificial turf?

b. Create a variable that classifies team?s total attendance into three groups: less than 2.0 (million). 2.0 up to 3.0 and 3.0 or more. At the .05 significance level, is there a difference in the mean number of games won among the three groups? Use the .01 significance level.

c. Using the same attendance variable developed in part(b), is there a difference in the mean team batting average? Use the .01 significance level.

d. Using the same attendance variable developed in part (b), is there a difference in the mean salary of the three groups? Use the .01 significance level.

47. Refer to the wage data, which reports information on annual wages for a sample of 100 workers. Also included are variables relating to industry, years of education, and gender for each worker.

a. Conduct a test of hypothesis to determine if there is a difference in the mean annual wages for workers in the three industries. If there is a difference in the means, which pair or pairs of means differ? Use the .05 significance level.

b. Conduct a test of hypothesis to determine if there is a difference in the mean annual wages for workers in the six different occupations. If there is a difference in the means, which pair or pairs of means differ? Use the .05 significance level.

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#### Solution Summary

The solution gives details of regression analysis, ANOVA and students t test of Baseball data.