Question: The standard deviation for the number of weeks 15 New York Times hardcover fiction books spent on their bestseller list is 6.17 weeks. The Standard deviation for the 15 New York Times hardcover nonfiction list is 13.12 weeks. At α=0.10, can we conclude that there is a difference in the variances?

(Hint: State H ₀ : \[{{\sigma }_{1}}^{2}={{\sigma }_{2}}^{2}\] and H ₁ : \[{{\sigma }_{1}}^{2}\ne {{\sigma }_{2}}^{2}\] (claim), Ex 9-6 is a similar example)

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