An analysis is conducted to compare mean time to pain relief(measured in minutes) under four competing treatment regimens.Summary statistics on the four treatments are shown below. TheANOVA table presented below is not completed.
Treatment | Sample Size | Mean Time to Relief | Sample Variance |
A | 5 | 33.8 | 17.7 |
B | 5 | 27.0 | 15.5 |
C | 5 | 50.8 | 9.7 |
D | 5 | 39.6 | 16.8 |
| | | | |
Source of Variation | SS | df | MS | F |
Between Groups | | | 508.13 | |
Within Groups | 3719.48 | | | |
| | | | |
Total | | | | |
a. What is the within group (error) degrees of freedom value(df2)?
b. Based on the data and ANOVA table provided in Q44, computethe MSE. (round to 2 decimal places)
c. Based on the data and ANOVA tableprovided in Q44, compute the F test statistic. (round to 2 decimalplaces)
d. What is the critical value for the hypothesis testyou performed in Q44-Q46? (2 decimal places)
