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R.R. Jha
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in a random sample of 21 people, the mean number of books they

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in a random sample of 21 people, the mean number of books they read in the past year was 10.53 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 for the population mean U. What is the margin of error of U?

The confidence interval for the population mean u is (?,?).
round to the nearest hundredth as needed

The margin of error of U is (?).round to the nearest hundredth as needed
Submitted: 1 year ago.
Category: Math Homework
Expert:  R.R. Jha replied 1 year ago.
Hello,
Welcome!

The confidence interval for the population mean u is (4.28, 16.78).

The margin of error of U is (6.25)

Let me know if you need help with any other questions.

Please leave a rating.
Thanks
R.R. Jha, Bachelor's Degree
Category: Math Homework
Satisfied Customers: 5470
Experience: Math Expert
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