The following data summarize the results from an independent measures study comparing three treatment conditions. I II III 5 3 6 3 3 8 1 7 5 1 4 2 5 3 4 T =15 T =20 T = 25 G = 60 SS =16 SS =12 SS =20 ΣX2 = 298 Use an ANOVA with α = .01 to determine whether there are any significant differences among the three treatment means The null hypothesis in symbols is: H0: μ1 ≠ μ2≠ μ3 H0: μ1 = μ2 = μ3 H0: M1 = M2 = M3 H0: M1 ≠ M2≠ M3 H0: μ1> μ2> μ3 H0: μ1 ≤ μ2≤ μ3 The alternative hypothesis is: There are no significant differences among the three treatment means All pairs of means are significantly different from each other There is at least one significant mean difference: At least two means significantly differ from each other H1: μ1 ≠ μ2≠ μ3 The Critical F-value is: The F-statistic is: Your decision is: Reject the null hypothesis and conclude that there are no significant mean differences among the treatments Reject the null hypothesis and conclude that there are significant mean differences among the treatments Fail to reject the null hypothesis and conclude that there are no significant mean differences among the treatments Fail to reject the null hypothesis and conclude that there are significant mean differences among the treatments
The following data summarize the results from an independent measures study comparing three treatment conditions. I II III 5 3 6 3 3 8 1 7 5 1 4 2 5 3 4 T =15 T =20 T = 25 G = 60 SS =16 SS =12 SS =20 ΣX2 = 298 Use an ANOVA with α = .01 to determine whether there are any significant differences among the three treatment means The null hypothesis in symbols is: H0: μ1 ≠ μ2≠ μ3 H0: μ1 = μ2 = μ3 H0: M1 = M2 = M3 H0: M1 ≠ M2≠ M3 H0: μ1> μ2> μ3 H0: μ1 ≤ μ2≤ μ3 The alternative hypothesis is: There are no significant differences among the three treatment means All pairs of means are significantly different from each other There is at least one significant mean difference: At least two means significantly differ from each other H1: μ1 ≠ μ2≠ μ3 The Critical F-value is: The F-statistic is: Your decision is: Reject the null hypothesis and conclude that there are no significant mean differences among the treatments Reject the null hypothesis and conclude that there are significant mean differences among the treatments Fail to reject the null hypothesis and conclude that there are no significant mean differences among the treatments Fail to reject the null hypothesis and conclude that there are significant mean differences among the treatments
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
The following data summarize the results from an independent measures study comparing three treatment conditions.
I |
II |
III |
|
5 |
3 |
6 |
|
3 |
3 |
8 |
|
1 |
7 |
5 |
|
1 |
4 |
2 |
|
5 |
3 |
4 |
|
T =15 |
T =20 |
T = 25 |
G = 60 |
SS =16 |
SS =12 |
SS =20 |
ΣX2 = 298 |
Use an ANOVA with α = .01 to determine whether there are any significant differences among the three treatment means
The null hypothesis in symbols is:
H0: μ1 ≠ μ2≠ μ3
H0: μ1 = μ2 = μ3
H0: M1 = M2 = M3
H0: M1 ≠ M2≠ M3
H0: μ1> μ2> μ3
H0: μ1 ≤ μ2≤ μ3
The alternative hypothesis is:
There are no significant differences among the three treatment means
All pairs of means are significantly different from each other
There is at least one significant mean difference:
At least two means significantly differ from each other
H1: μ1 ≠ μ2≠ μ3
The Critical F-value is:
The F-statistic is:
Your decision is:
Reject the null hypothesis and conclude that there are no significant mean differences among the treatments
Reject the null hypothesis and conclude that there are significant mean differences among the treatments
Fail to reject the null hypothesis and conclude that there are no significant mean differences among the treatments
Fail to reject the null hypothesis and conclude that there are significant mean differences among the treatments
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