The best way to reduce the variances in the distributions of means when conducting a t test for independent means is to
A) increase the size of the samples.
B) raise the study's level of significance.
C) use the true population variance.
D) treat the two samples as one sample.
A) increase the size of the samples.
You might also like to view...
Research by Joan Chrisler showed that female college students often thought that other women had more severe premenstrual symptoms than they did. This finding suggests that
a. the incidence of premenstrual syndrome may be exaggerated. b. the premenstrual syndrome is a genuine problem that should be addressed by developing appropriate medications. c. the premenstrual syndrome is actually a psychological problem, rather than a physical problem. d. the premenstrual syndrome should be publicized more widely.
The technique of telling consumers to "Use Brand X!" is traceable to ____ law of ____.?
a. ?Münsterberg's; suggestibility b. ?Scott's; direct pitch c. ?Scott's; suggestibility d. ?Witmer's; suggestion e. ?Scott's; direct action