A sample of n = 25 scores produces a t statistic of t = ?2.062. If the researcher is using a two- tailed test, then which of the following is the correct statistical decision? a. The researcher can reject the null hypothesis with ? = .05 but not with ? = .01. b. The researcher can reject the null hypothesis with either ? = .05 or ? = .01. c. The researcher must fail to reject the null hypothesis with either ? = .05 or ? = .01. d. It is impossible to make a decision about H0 without more information. Solution The researcher can reject the null hypothesis with a = .05 but not with a = .01..

1. A sample of n = 25 scores produces a t statistic of t = ?2.062. If the researcher is using a two-
tailed test, then which of the following is the correct statistical decision?
a. The researcher can reject the null hypothesis with ? = .05 but not with ? = .01.
b. The researcher can reject the null hypothesis with either ? = .05 or ? = .01.
c. The researcher must fail to reject the null hypothesis with either ? = .05 or ? = .01.
d. It is impossible to make a decision about H0 without more information.
Solution
The researcher can reject the null hypothesis with a = .05 but not with a = .01.