Question

The test statistic of z = −3.16 is obtained when testing the claim that pequals=4 divided by 74/7.

a. Using a significance level of alphaαequals=0.100.10​, find the critical​ value(s).

b. Should we reject Upper H 0H0 or should we fail to reject Upper H 0H0​?

a. The critical​ value(s) is/are z ????

​(Round to two decimal places as needed. Use a comma to separate answers as​ needed.)

Answer 1

Solution:

a) At , the critical value of z is

b) test statistic (-3.16) < critical value (-1.28)

So,fail to reject upper H0.