At a certain university, the average attendance at basketball games has been 2725. This year the attendance for the first 14 games has been 2265 with a standard deviation of
485) The athletic director claims that the attendance is the same as last year. If α = 0.05, What are the critical values for this two-tailed t test?
A) $\pm 1.761$
B) $\pm 2.145$
C) $\pm 1.771$
D) $\pm 2.160$

Question

At a certain university, the average attendance at basketball games has been 2725. This year the attendance for the first 14 games has been 2265 with a standard deviation of
485) The athletic director claims that the attendance is the same as last year. If α = 0.05, What are the critical values for this two-tailed t test? 
A) $\pm 1.761$
B) $\pm 2.145$
C) $\pm 1.771$
D) $\pm 2.160$

Quizplus · Accepted Answer

The critical values for a two-tailed t-test with 13 degrees of freedom (n-1 = 14-1) at α = 0.05 are approximately ±2.160.

At a Certain University, the Average Attendance at Basketball Games ±1.761\pm 1.761±1.761

At a Certain University, the Average Attendance at Basketball Games $\pm 1.761$