Given the following information:
n1 = 18, s21 = 0.398, n2 = 20, s22 = 1.888, Ha: \sigma 21 < \sigma 22, \alpha = 0.1
\alpha
=
0.1
Determine the critical value(s) of the test statistic. If the test is two - tailed, separate the
values with a comma. Round your answer(s) to four decimal places.
4
