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The standard deviation of the ages of a sample of 16 executives from the northern states...

The standard deviation of the ages of a sample of 16 executives from the northern states was 8.2 years; while the standard deviation of the ages of a sample of 26 executives from the southern states was 12.8 years. At α = .1, test to see if there is any difference between the variances of the ages of all the northern and all the southern executives.

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there is sufficient evidence to conclude that difference between the variances of the ages of all the northern and all the southern executives.

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