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8. Dr. Dolly teaches composition at a two year community college. He counted misspelled words
in his most recent essay assignment. The data were approximately normally distributed with 2.44
misspelled words per essay. For his morning class, of 40 students, the average number of
misspelled words was 6.05. Create a 95% confidence interval for the true population mean of
misspelled words in the population of student essays.

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