Suppose we want a 90% confidence interval for the average amount spent on books byfreshmen in their first year at a major university. The interval is to have a margin of error ofno more than $2, and the amount spent has an approximately Normal distribution with astandard deviation o = $30. The number of observations required is closest toO a391O b257609O d568

Given that For 90% confidence interval The margin of error =2 Standard deviation=$30 We have to…

Answered: Suppose we want a 90% confidence…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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#26).
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