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In a random sample of 26 people, the mean number of books they had read in the past year was 14.93 books and the standard deviation was 16.60 books. Assume the variable is normally distributed and use a t-distribution to construct a 90% confidence interval or the population mean u. What is the margin of error of u?

The confidence interval or the population mean u is ?(_____,_____).

(round the final answer to the nearest hundredth as needed. Round all intermediate values to the nearest thousandth as needed.)

The margin of error of u is ? _____ round to nearest thousandth as needed.

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