Suppose Dr

Multiple Choice

Suppose Dr.Spock found that a sample of humans showed more emotional reactions than a sample of Vulcan aliens.How could Dr.Spock be sure that the results weren't due to chance alone?

A) He could use descriptive statistics.
B) He could use inferential statistics.
C) He could measure the variability of the scores in each group.
D) He could re-test both samples and see if he finds the same results again.