Determine the critical value for a left-tailed test regarding a population proportion at the alphaequals0.01 level of significance.

Critical value zc=-2.326

Step-by-step explanation:

We have a left tailed test regarding a population proportion.

The significance level is α=0.01.

That means that the critical value zc satisfies the equation:

This critical value needs to be looked up in a standard normal distribution probability table (or an applet or software).

The value for this critical value is zc=-2.326.

A picture of the stantdard normal distribution and the critical value is attached.

step-by-step explanation:

once you graph it hit 2nd (the blue button) and graph

that takes you to a table of coordinates

on the left is x coordinates and on the right is y coordinates and an empty box

(you may have to scroll up/down in order to get ( x, 0)

22 and 22

step-by-step explanation:

10 plus 12 equals 22.

12 plus 10 also equals 22 because regardless of what order they're in, they're gonna equal the same thing.