Consider an Urban Ecologist Who Is Interested in Whether the Presence

Multiple Choice

Consider an urban ecologist who is interested in whether the presence of high-voltage power lines influences the number of eggs laid by birds nearby. She plans to conduct a two-sample t-test and will assume that the population variances are equal. Her data are as follows:
Near (group 1) : mean = 6.1, SD = 0.35, n = 12
Far (group 2) : mean = 5.8, SD = 0.30, n = 9
What is the t-statistic for the t-test?

A) 1.96
B) 2.06
C) 2.16
D) 2.26