A researcher wants to test a hypothesis according to which the mean rating of guilt will be higher for unattractive defendants than for attractive defendants. The appropriate statistical test would be the _____.

A) Pearson r
B) two-tailed t-test
C) one-tailed t-test
D) chi-square

One-tailed T-test

A statistical test used to determine if a sample mean significantly exceeds or is significantly less than a hypothesized value.

Mean Rating

The average score derived from the sum of all ratings divided by the number of ratings.

Attractive Defendants

The phenomenon where defendants who are deemed physically attractive may receive more lenient judgments or penalties.