Homework Answers
The statistical software output for this problem is:
Contingency table results:
Rows: var1
Columns: None
| NyQuil | Robitussin | Triainic | Total | |
| No Relief | 11 | 13 | 9 | 33 |
| Some Relief | 32 | 28 | 27 | 87 |
| Total Relief | 7 | 9 | 14 | 30 |
| Total | 50 | 50 | 50 | 150 |
Chi-Square test:
| Statistic | DF | Value | P-value |
|---|---|---|---|
| Chi-square | 4 | 3.8100313 | 0.4323 |
Hence,
Test statistic = 3.81
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