Stan is conducting a class research project in which he compares manual dexterity in two groups of randomly assigned participants: one group is sober and the other has consumed 2 ounces of 75 proof alcohol. what statistical test should stan use to see whether the two groups differ in manual dexterity?

t-test

Explanation:

t-test is an inferential statistic analysis which is used to determine whether there is a difference between mean score of two groups. Here, we have two groups with one independent  variable (manual dexterity), so t-test is appropriate.

the first settlements began along the huang river because of the importance of the huang river in the beginning of china. it goes back to the story, “the tale of emperor yu”, which references the tale of the great flood, which was caused by the huang river and was believed to create and influence china’s making.