Question

Using a t-distribution with 37 degrees of freedom, find the rejection region for a lower-tailed hypothesis test about a population mean at the 0.05 significance level.
Answer: rejection region: t < __________ (3 decimal places)

Answer 1

Solution :

Given that,

Lower tailed test

Degrees of freedom = df = 37

= 0.05

t _,df = t_0.05,37 = 2.064

Rejection region : t < -1.687