Use a 0.05 significance level with a t test to test the claim that the samples of FleschKincaid Grade Level scores from Clancy and Rowling have the same mean.

Use the Flesch-Kincaid Grade Level measurements from randomly selected pages in Tom Clancy?s The Bear and the Dragon, J. K. Rowling?s Harry Potter and the Sorcerer?s Stone, and Leo Tolstoy?s War and Peace. Those measurements reflect the reading level of the sampled text.

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Clancy 8.8 5.4 5.0 7.6 9.0 3.2 12.0 4.9 4.6 5.0 6.4 6.1 Rowling 5.2 3.7 6.1 4.9 4.4 3.2 5.6 6.9 5.7 4.1 6.7 4.4 Tolstoy 8.6 9.8 6.1 5.9 7.7 10.9 8.2 7.2 11.0 11.5 8.4 5.9