- A study was conducted to determine the effects of two factorson the latherability of soap. The two factors were type of water(tap or distilled) and glycerol (present or absent). The outcomemeasured was the amount of foam produced (in milliliters). Theexperiment was repeated three times for each combination of thefactors. The results are as follows.
| No | Glycerol | Glycerol |
Distilled Water | 165 | 181 | 168 | 170 | 197 | 190 |
Tap Water | 155 | 142 | 139 | 139 | 160 | 160 |
Analyze the data using a=.05.
Conduct the following tests. It may not be necessary to performall tests. Use a =.05. Please show all work
- Test for Interaction
H0:
Ha:
Test statistic value:
p-value:
State your conclusion:
b.Test for the effect of glycerol
H0:
Ha:
Test statistic value:
p-value:
State your conclusion:
c.Test for the effect of type ofwater
H0:
Ha:
Test statistic value:
p-value:
State your conclusion:
