The onesample t statistic from a sample of n 23 observation

The one-sample t statistic from a sample of n = 23 observations for the one-sided test of

H₀: ? = 15, H_a: ? > 15

has the value t = 2.24. Based on this information

Solution

It is a one-tailed test.

So the p-value= P(t with df=n-1=22 > 2.24) =0.0178 (from student t table)

Answer: B 0.01 < P-value < 0.025.