Estimation and Confidence Intervals
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Dr. Patton is a Professor of English, Recently he counted the number of misspelled words in a group of student essays. For his class of 40 students, the mean number of misspelled words was 6.05 and the standard deviation 2.44 per essay.
Construct a 95% confidence interval for the mean number of misspelled words in the population of student essays.
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