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Which of the following statements regarding the equal-standard-deviations assumption of the pooled t-test is the most accurate? The pooled t-test is robust to moderate violations
Which of the following statements regarding the equal-standard-deviations assumption of the pooled t-test is the most accurate?
The pooled t-test is robust to moderate violations of the assumption, if sample sizes are roughly equal.
The pooled t-test is robust to moderate violations of the assumption regardless of the sample sizes
The pooled t-test is extremely non-robust to violations of the assumption.
The pooled t-test is robust to moderate violations of the assumption, if the sample sizes are large.
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