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A nurse claims that the variations of the lengths of newborn males is different from the variations of the lengths of newborn females.
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A nurse claims that the variations of the lengths of newborn males

is different from the variations of the lengths of newborn females. A sample of 10 newborn males is selected and the standard deviation is 1.9 inches. The standard deviation of a sample of 11 newborn females is 0.9 inch. Testing the nurse's claim at α = 0.05 which of the following NOT correct?
a.The critical value is 3.78.
b.The critical value is 3.02.
c.Reject the null hypothesis.
d.There is enough evidence to support the claim.

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