Homework SourseType of study Guides 1a 1b 2a 2b 3a 3b 4a 4b Angles 400 500
Type of study Guides
1a
1b
2a
2b
3a
3b
4a
4b
Angles
400
500
400
500
400
500
400
500
proofs
1200
1500
1200
1500
1200
1500
1200
1500
triangles
400
500
400
500
400
500
400
500
Using the contingency table for the problems.
A) The total sale amounts for each entire marking period (start, end) is a population
B) µ= Mar Per (Start/End) Sales Total
3
C) a= 0.05
1. Do a One way ANOVA. Tell us how the results apply to the sales predictions.
Ho: µ1 = µ2= µ2
H1: µ(n) µ(m)
| Type of study Guides | 1a | 1b | 2a | 2b | 3a | 3b | 4a | 4b |
| Angles | 400 | 500 | 400 | 500 | 400 | 500 | 400 | 500 |
| proofs | 1200 | 1500 | 1200 | 1500 | 1200 | 1500 | 1200 | 1500 |
| triangles | 400 | 500 | 400 | 500 | 400 | 500 | 400 | 500 |
Solution
As p <0.05, reject null hypothesis.
All means are not equal
| Samples | I | II | III | ||
| N | 8 | 8 | 8 | ||
| Sum | 3600 | 10800 | 3600 | ||
| Mean | 450 | 1350 | 450 | ||
| Sum (x^2) | 1640000 | 14760000 | 1640000 | ||
| Variance | 2857.1429 | 25714.285 | 2857.1429 | ||
| Std dev | 53.4522 | 160.3567 | 53.4522 | ||
| Std error | 18.8982 | 56.6947 | 18.8982 | ||
| Anova Table | |||||
| Source | SS | df | MS | F | p |
| Treatment | 4320000 | 2 | 2160000 | 206.18 | 0.0001 |
| Error | 220000 | 21 | 10476.191 | ||
| Total | 4540000 | 23 |
