Do one of the following, as appropriate: (a) Find the critical value z?/2, (b) find the critical value t?/2, (c) state that neither the normal nor the t distribution applies.
-$95 \% ; n = 11 ; \sigma$ is known; population appears to be very skewed.
A) Neither the normal nor the $t$ distribution applies.
B) $z _ { \alpha / 2 } = 1.96$
C) $\mathrm { z } _ { \alpha / 2 } = 1.812$
D) $\mathrm { t } _ { \alpha / 2 } = 2.228$

Question

Quizplus · Accepted Answer

The population is very skewed, and the sample size is small (n=11), so neither the normal nor the t distribution applies.

Do One of the Following, as Appropriate: (A) Find the Critical