Question
Complete parts (a) through (c) below. (a) Determine the critical value(s) for a right-tailed test of a population mean at the alpha = 0.01 level of significance with 15 degrees of freedom. (b) Determine the critical value(s) for a left-tailed test of a population moan at the alpha = 0.05 level of significance based on a sample size of n=20. (c) Determine the critical value(s) for a two-tailed test of a population mean at the alpha = 0.10 level of significance based on a sample size of n = 18. (a) t_crit =
Explanation / Answer
a) t(critical) =2.602
b) t(critical) = -1.729, degrees of freedom = 19
c) t(critical) =+/- 1.739, degrees of freedom = 17