When the assumption of a normal curve is seriously violated, the ordinary t test
A) resembles an analysis of variance.
B) is conducted using t instead of t.
C) gives an incorrect result.
D) is robust.
Question 2
When conducting a statistical test, a single outlier can
A) make the test more robust to violations of the assumption of normality.
B) reduce the sample's variance, making significant results easier to achieve.
C) lead to a significant result when the other members of the sample considered without the outlier would not lead to a significant result.
D) improve the reliability of the statistical procedure.
Normal and sickle-cell hemoglobin. (a) Subtle differences between the conformations of hemoglobin A
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