A clinical trial is conducted to compare a new pain re- liever for arthritis to a placebo. Participants are randomly assigned to receive the new medication or a placebo, and the outcome is pain relief within 30 minutes. The data ABLE 7-8 Data for Practice Problem 4 Pain Relief No Pain Relief ew medication 44 76 lacebo 21 99
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Please answer question 4 and show how to do it in excel.
Given Information:
A clinical trial is conducted to compare a new pain - reliever for arthritis to a placebo . Participants are randomly assigned to receive the new medication or a placebo , and the outcomes is pain relief within 30 minutes .
| Pain Relief | No Pain Relief | Total | |
| New Medication | 44 | 76 | 120 |
| Placebo | 21 | 99 | 120 |
| Total | 65 | 175 | 240 |
When the conditions for Pearson’s chi-square test are not met, especially when one or more of the cells have expi < 5, an alternative approach with 2 × 2 contingency tables is to use Fisher’s exact test. Since this method is more computationally intense, it is best used for smaller samples .
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