Question

the f - distributions curve is negatively skewed.
a true
b false
question 19
analysis of variance is used to ______.
a compare nominal data
b compute a t test
c compare population proportions
d simultaneously compare several population means
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Explanation:

The F - distribution's curve is positively skewed, not negatively skewed. Analysis of variance (ANOVA) is used to simultaneously compare several population means. It is not for comparing nominal data (which is more related to chi - square tests), computing a t - test (which is a different statistical test), or comparing population proportions (which is often done with z - tests for proportions).

Answer:

Question 18: B. False
Question 19: D. Simultaneously compare several population means