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12, and sample size is 7.  For more than one gadget: The mean is 79, standard deviation is 13, and sample size is 5.  Is it possible to conclude that there is no significant difference in the mean grades of the two types of students at a 95% confidence interval? Note: This is a two-tailed test. Also take note that this is finding the difference between two population means.

12, and sample size is 7.  For more than one gadget: The mean is 79, standard deviation is 13, and sample size is 5.  Is it possible to conclude that there is no significant difference in the mean grades of the two types of students at a 95% confidence interval? Note: This is a two-tailed test. Also take note that this is finding the difference between two population means.

MATLAB: An Introduction with Applications
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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 A study is conducted to compare the performance of students with more than one personal electronic gadget and those with only one. A number of them were taken as subjects for the study. The mean grades of these students and the standard deviations are shown below: 

For one gadget: 

The mean is 83, standard deviation is 12, and sample size is 7. 

For more than one gadget:

The mean is 79, standard deviation is 13, and sample size is 5. 

Is it possible to conclude that there is no significant difference in the mean grades of the two types of students at a 95% confidence interval? Note: This is a two-tailed test. Also take note that this is finding the difference between two population means. 

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