When is using the output of the Shiny app "Randomization Test for Difference in Two Treatment Means" appropriate?
A) When the number of sample differences is at least 30.
B) When the sample sizes are at least 30.
C) When the treatment response distributions are approximately normal.
D) When individuals or objects are randomly assigned to treatments (or vice versa).
E) None of above.

Question

When is using the output of the Shiny app "Randomization Test for Difference in Two Treatment Means" appropriate? ​
A) When the number of sample differences is at least 30.
B) When the sample sizes are at least 30.
C) When the treatment response distributions are approximately normal.
D) When individuals or objects are randomly assigned to treatments (or vice versa).
E) None of above.

Quizplus · Accepted Answer

The Shiny app "Randomization Test for Difference in Two Treatment Means" is appropriate when individuals or objects are randomly assigned to treatments (or vice versa) in order to ensure that the groups being compared are comparable and any observed differences are likely due to the treatment and not other factors. The sample size and distribution of treatment responses are not specified requirements for using this test, although larger sample sizes may increase the statistical power of the test.

When Is Using the Output of the Shiny App "Randomization