From a University population, random samples of 45 seniors and 37 freshmen have been given a scale that measures sexual experiences. The freshmen report an average of 1.6 sexual partners over their lifetimes while seniors report an average of 2.5 partners. The t (obtained) for this difference was -3.56 while the t (critical) was±2.34. What can be concluded?
A) There is no significant difference between the classes.
B) Seniors and freshman are significantly different in their sexual experiences.
C) Freshmen are more sexually active.
D) Sexual mores are deteriorating.

Question

Quizplus · Accepted Answer

The obtained t-value (-3.56) is greater than the critical t-value (-2.34) at a significance level of 0.05 with degrees of freedom of (45+37-2) = 80, indicating that there is a significant difference between the two groups in terms of their reported sexual experiences. Therefore, option B is the correct answer. Options A, C, and D are not supported by the data.

From a University Population, Random Samples of 45 Seniors and 37