Should the null hypothesis that all the diets have the same mean weight loss be rejected? A. Yes, because the P-value is less than the significance level. B. No, because the P-value is less than the significance level. C. No, because the P-value is greater than the significance level. D. Yes, because the P-value is greater than the significance level
Should the null hypothesis that all the diets have the same mean weight loss be rejected? A. Yes, because the P-value is less than the significance level. B. No, because the P-value is less than the significance level. C. No, because the P-value is greater than the significance level. D. Yes, because the P-value is greater than the significance level
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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Question #4
In a test of weight loss programs, 192 subjects were divided such that 32 subjects followed each of 6 diets. Each was weighed a year after starting the diet and the results are in the ANOVA table below. Use a 0.05significance level to test the claim that the mean weight loss is the same for the different diets.
Source of Variation
|
SS
|
df
|
MS
|
F
|
P-value
|
F crit
|
---|---|---|---|---|---|---|
Between Groups
|
459.438
|
5
|
91.88755
|
2.8185
|
0.017684
|
2.262672
|
Within Groups
|
6063.894
|
186
|
32.60158
|
|
|
|
Total
|
6523.332
|
191
|
|
|
|
|
Should the null hypothesis that all the diets have the same mean weight loss be rejected?
A. Yes, because the P-value is less than the significance level.
B. No, because the P-value is less than the significance level.
C. No, because the P-value is greater than the significance level.
D. Yes, because the P-value is greater than the significance level.
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