Compute the mean, variance, and standard deviation for each of these three samples.
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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The results of Accounting Principals' latest Workonomix survey indicate the average | |
American worker spends $1092 on coffee annually (The Consumerist, January 20, 2012). | |
To determine if there are any differences in coffee expenditures by age group, samples of | |
10 consumers were selected for three age groups (18-34, 35-44 and 45 and older). | |
The dollar amount each consumer in the sample spent last year on coffee is provided below. |
18-34 | 35-44 | 45+ |
1355 | 969 | 1135 |
115 | 434 | 956 |
1456 | 1792 | 400 |
2045 | 1500 | 1374 |
1621 | 1277 | 1244 |
994 | 1056 | 825 |
1937 | 1922 | 763 |
1200 | 1350 | 1192 |
1567 | 1586 | 1305 |
1390 | 1415 | 1510 |
Required: | |||||||
1. Compute the mean, variance, and standard deviation for each of these three samples. |
Note: Please provide a clear and understandable solutions and answers. Thank you!
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