Consider urban ecologists who are interested in whether the presence of high-voltage power lines influences the number of eggs laid by birds nearby. They plan to conduct a two-sample t-test and will assume that the population variances are equal. Their data are as follows:
Near (group 1) : mean = 6.1, SD = 0.35, n = 9
Far (group 2) : mean = 5.8, SD = 0.30, n = 12
Based on the t-test statistic, and using your table of critical t-values, which of the following P-value ranges matches the one for the t-value?
A) 0.05 < p
B) 0.02 < p < 0.05
C) 0.01 < p < 0.02
D) p < 0.01
Correct Answer:
Verified
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