est to determine if there is a significant difference in the average cost of textbooks for...
est to determine if there is a significant difference in the average cost of textbooks for 3 students whose textbook costs are noted below. Alexia 160 100 220 120 150 Demi 180 120 180 110 150 200 Shikha 150 180 150 160 120 What is the value of the Error MS = ______ (round to the third value to the right of the decimal)
Homework Answers
Here I used Excel to compute the statistical results.
the given problem is one way anova
SS(Total) = SS(Between) + SS(Error)
SS(E)=SS(TO)−SS(T)
= 16813.33
MSE= 16813.33/13 = 1293.333
| 16813.33 |
|
SUMMARY |
||||||
|
Groups |
Count |
Sum |
Average |
Variance |
||
|
Alexia |
5 |
750 |
150 |
2100 |
||
|
Demi |
6 |
940 |
156.6667 |
1306.667 |
||
|
Shikha |
5 |
760 |
152 |
470 |
||
|
ANOVA |
||||||
|
Source of Variation |
SS |
df |
MS |
F |
P-value |
F crit |
|
Between Groups |
130.4167 |
2 |
65.20833 |
0.050419 |
0.951016 |
3.805565 |
|
Within Groups |
16813.33 |
13 |
1293.333 |
|||
|
Total |
16943.75 |
15 |
||||
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