MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The average take-out order size for Ashoka Curry House restaurant is shown. Assuming equal variances, at α = 0.05, is there a significant difference in the order sizes?
|
Customer Order Size (dollars) |
||||
|
Statistic |
Friday Night |
Saturday Night |
||
|
Mean order size |
x¯1x¯1 = |
22.32 |
x¯2x¯2 = |
25.56 |
|
Standard deviation |
s1 = |
4.35 |
s2 = |
6.16 |
|
Number of orders |
n1 = |
13 |
n2 = |
18 |
Find the test statistic tcalc
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