A researcher wants to compare the variances of the heights (in inches) of four-
years college basketball players with those of players in junior colleges. A sample of
30 players from each type of school is selected, and the variances of the heights for
each type are 2.43 and 3.15, respectively. At α = 0.10, is there a significant difference
between the variances of the heights in the two types of schools? Find the 90%
confidence interval for the difference of the variances.
A researcher wants to compare the variances of the heights (in inches) of 4 year college basketball players with those of players in junior colleges. A sample of 30 players from each type of school is selected, and the variances of the heights for each type are: 4 year colleges – 2.43 inches, junior colleges – 3.15 inches. Assuming the heights of all basketball players is normally distributed, at α = 0.10, is there a significant difference between the variances of the heights in the two types of schools
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