Matching Research Questions to T-Test Procedures
A researcher is studying recovery times for an illness. Which of the following presents a research question that is incorrectly matched with its corresponding inference procedure?
A
“Do the treatments have different mean recovery times?” — Two-sample t-test
B
“Is the mean recovery time less than 5 days?” — One-sample t-test
C
“Is the mean difference in recovery times different from 0?” — Paired t-test
D
“Is the mean recovery time for treatment A less than for B?” — Paired t-test
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