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please write the full answer thanks. Question 1 (2.5 points) Listen Find the size of the sample required to estimate the mean age (in years)

please write the full answer thanks.

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Question 1 (2.5 points) Listen Find the size of the sample required to estimate the mean age (in years) of textbooks currently used in college courses given the standard deviation is 2.8 years. Assume a 90% degree of confidence and that the sample mean will be in error by no more than 0.14 years. Paragraph BIUVA E w = +

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