Problem #4: Suppose we know that midterm scores are normally distributed with an unknown mean u. Suppose that 23 students are selected at random and their average score is 66.2. Now we are interested in constructing confidence intervals for u. We further suppose that the true population standard deviation of scores is 14. Problem #4(a): Problem #4(b): Problem #4(c): (a) Find a 96% confidence interval for u. (b) Find a 93% confidence interval for u. (c) Suppose we will take another sample and we wish to construct a 97% confidence interval with width 6. What sample size would be required? numbers correct to 2 decimals numbers correct to 2 decimals
Problem #4: Suppose we know that midterm scores are normally distributed with an unknown mean u. Suppose that 23 students are selected at random and their average score is 66.2. Now we are interested in constructing confidence intervals for u. We further suppose that the true population standard deviation of scores is 14. Problem #4(a): Problem #4(b): Problem #4(c): (a) Find a 96% confidence interval for u. (b) Find a 93% confidence interval for u. (c) Suppose we will take another sample and we wish to construct a 97% confidence interval with width 6. What sample size would be required? numbers correct to 2 decimals numbers correct to 2 decimals
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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