Frequency | Effective | ||||||
Drug | Yes | No | Total | ||||
A | 26 | 19 | 45 | ||||
B | 14 | 14 | 28 | ||||
C | 10 | 7 | 17 | ||||
D | 22 | 68 | 90 | ||||
Total | 72 | 108 | 180 | ||||
Column Proportions | Effective | ||||||
Drug | Yes | No | |||||
A | 0.3611 | 0.1759 | |||||
B | 0.1944 | 0.1296 | |||||
C | 0.1389 | 0.0648 | |||||
D | 0.3056 | 0.6296 | |||||
Total | 1 | 1 | |||||
Row Proportions | Effective | ||||||
Drug | Yes | No | Total | ||||
A | 0.5778 | 0.4222 | 1 | ||||
B | 0.5000 | 0.5000 | 1 | ||||
C | 0.5882 | 0.4118 | 1 | ||||
D | 0.2444 | 0.7556 | 1 | ||||
Total | |||||||
Expectations | Effective | ||||||
Drug | Yes | No | Total | ||||
A | 18.0 | 27.0 | 45 | ||||
B | 11.2 | 16.8 | 28 | ||||
C | 6.8 | 10.2 | 17 | ||||
D | 36.0 | 54.0 | 90 | ||||
Total | 72 | 108 | 180 | ||||
Differences | Effective | ||||||
Drug | Yes | No | Total | ||||
A | 8 | -8 | 0 | ||||
B | 2.8 | -2.8 | 0 | ||||
C | 3.2 | -3.2 | 0 | ||||
D | -14 | 14 | 0 | ||||
Total | 0 | 0 | 0 | ||||
Chi Square Values | Effective | ||||||
Drug | Yes | No | Total | ||||
A | 3.5556 | 2.3704 | |||||
B | 0.7000 | 0.4667 | |||||
C | 1.5059 | 1.0039 | |||||
D | 5.4444 | 3.6296 | |||||
Total | 18.67647 | Overall Chi Square Value | |||||
DF = (r-1)(c-1) = | 3 | ||||||
Type I error rate= | 0.05 | ||||||
Chi Square Critical value= | 7.815 | ||||||