Question

The following data give the number of pitches thrown by both teams in each of a random sample of 24 Major League Baseball games played between the beginning of the 2012 season and May 16, 2012.
a. Create a histogram of these data using the class intervals 210 to less than 230, 230 to less than 250, 250 to less than 270, and so on. Based on the histogram, does it seem reasonable to assume that these data are approximately normally distributed?
b. Calculate the value of the point estimate of the corresponding population mean.
c. Assuming that the distribution of total number of pitches thrown by both teams in Major League Baseball games is approximately normal, construct a 99% confidence interval for the average number of pitches thrown by both teams in a Major League Baseball game.


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  • CreatedAugust 25, 2015
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