Numbers of characters per word were found from the same three books used in the preceding exercise. Use a 0.05 significance level to test the claim that the three books have the same mean number of characters per word. Does it appear that any of the authors use words with more characters? 

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Clancy Rowling 4.1 Tolstoy 4.8 4.5 4.6 4.2 4.3 4.5 4.5 4.5 4.0 4.0 4.6 4.2 4.5 4.3 4.5 4.5 4.2 4.4 4.5 4.4 4.4 4.5 4.3 4.7 4.8 4.3 4.2 4.3 4.3 4.3 4.5 4.0 4.4 4.3 4.4