A combination of visual inspection and statistical testing should always be used to determine normality.
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Q4: The t-test has four test assumptions.
Q5: The critical values of the t-test are
Q6: One-tailed tests are used most often, unless
Q7: A test for the equality of variances
Q8: The term robust is used, generally, to
Q10: The Kolmogorov-Smirnov test is a test of
Q11: Nonnormality is sometimes overcome through variable transformation.
Q12: When problems of nonnormality cannot be resolved
Q13: Analysts should always examine the robustness of
Q14: All t-tests first test for equality of
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