A researcher studies the relationship between taking aminoglycosides and muscle strength in a random sample of patients who take aminoglycosides and a random sample of patients who do not take aminoglycosides. An average strength score is calculated for each participant. To determine if there is a statistically significant difference in the average strength score an independent t-test is utilized. The researchers report that taking aminoglycosides is associated with a lower average strength score (t=1.984, p=0.025). You know this means:
A) A type I error was made
B) Equal variances was not assumed.
C) The Levene's test was insignificant
D) There is a statistically significant difference in the average strength score between the two groups.

Question

Quizplus · Accepted Answer

The p-value of 0.025 is less than the typical significance level of 0.05, indicating a statistically significant difference in average strength scores between the groups.

A Researcher Studies the Relationship Between Taking Aminoglycosides and Muscle