1. The principal randomly selected six students to take an aptitude test. Their scores were: 81.6 72.0 81.1 86.4 70.2 83.1 The sample standard deviation is s = 6.47 but you will have to calculate the sample mean. (a) Determine a 90% confidence interval for the mean score for all students. (b) Raise the level of confidence to 99%, and show the effect on the confidence interval.

1. The principal randomly selected six students to take an aptitude test. Their scores were: 81.6 72.0 81.1 86.4 70.2 83.1 The sample standard deviation is s = 6.47 but you will have to calculate the sample mean. (a) Determine a 90% confidence interval for the mean score for all students. (b) Raise the level of confidence to 99%, and show the effect on the confidence interval.

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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