Mathematics, 18.12.2019 02:31 reycaden
An educational psychologist wishes to know the mean number of words a third grader can read per minute.
she wants to ensure that the estimate has an error of at most 0.29 words per minute. a previous study found that the mean was 25.7 words per minute.
assuming that the variance is 8.41, what is the minimum number of third graders that must be included in a sample to construct the 85% confidence interval?
Answers: 3
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An educational psychologist wishes to know the mean number of words a third grader can read per minu...
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