CompTIA
DA0-001 · Question #527
An analyst is comparing two different standardized test training programs to determine whether a significant difference exists in the average scores of test takers in the two programs. Which of the…
The correct answer is A. t-test. A t-test is used to compare the means of two groups to determine whether there is a statistically significant difference between their average scores.
Data Analysis
Question
An analyst is comparing two different standardized test training programs to determine whether a significant difference exists in the average scores of test takers in the two programs. Which of the following is the best statistical method for the analyst to apply?
Options
- At-test
- BChi-squared
- CZ-score
- Dp-value
How the community answered
(23 responses)- A70% (16)
- B4% (1)
- C17% (4)
- D9% (2)
Explanation
A t-test is used to compare the means of two groups to determine whether there is a statistically significant difference between their average scores.
Topics
#t-test#Hypothesis testing#Statistical methods#Comparing means
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