a. Use the population in the file baseball.dat to take a one-stage cluster sample with the teams
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Question:
a. Use the population in the file baseball.dat to take a one-stage cluster sample with the teams as the psus. Your sample should have approximately 150 players altogether,
Describe how you selected your sample. The SAS code in the file cluster select. sas may be helpful.
b. Draw side-by-side boxplots of logsal for the teams in your sample.
c. Use your sample to estimate the mean of the variable logsal, and give a 95% CI.
d. Estimate the proportion of players in the data set who are pitchers, and give a 95% CI.
e, Which estimates have smaller CIs? Why do you think that happened?
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