State whether the standardized test statistic t indicates that you should reject the null hypothesis. Explain.

(a) t=2.172

(b) t=0

(c) t=2.099

(d) t=2.158

-4

0

4

t

t0=2.116

A normal curve is over a horizontal axis labeled z from negative 4 to 4 in increments of 1 and is centered on 0. Vertical line segments extend from the horizontal axis to the curve at t@Sub{0}=2.116, where t@Sub{0}=2.116 is to the right of 0. The area under the curve to the right of t@Sub{0}=2.116 is shaded.

(a) For t=2.172, should you reject or fail to reject the nullhypothesis?