Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis.
-$\alpha = 0.1$ for a two-tailed test.
A) $\pm 1.4805$
B) $\pm 1.645$
C) $\pm 2.33$
D) $\pm 2.052$

Question

Quizplus · Accepted Answer

For a two-tailed test with $\alpha = 0.1$, the critical z value is $\pm 1.645$. This divides the tail of the normal distribution into two parts, each with an area of 0.05.

Assume That the Data Has a Normal Distribution and the Number