Q. 9.44 - Elementary Statistics

Question

In each of Exercises 9.41-9.46 ,determine the critical values for a one-mean z-test. For each exercise, draw a graph that illustrates your answer

A left-tailed test with$\alpha = 0.05$

Step-by-Step Solution

Answer

A left-tailed test with $\alpha = 0.05$.

In the left tail test that $\alpha = 0.05$, from normal local tables values are significant 
$z_0 = -1.645$.

Step 1. Given

A left-tailed test with$\alpha = 0.05$

Step 2. Graph

A left-tailed test with $\alpha = 0.05$.

in the left tail test that $\alpha = 0.05$, from normal local tables values are significant $z_0 = -1.645$.

The graph is shown below :