Question

Assume that the significance level is α = 0.05. Use the given information to find the​ P-value and the critical​ value(s).

With H 1 : p ≠ 1/2 ​, the test statistic is z = -1.14.

​P-value = ____

​(Round to four decimal places as​ needed.)

The critical​ value(s) is/are ____

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

Answer 1

solution:

given that

H 1 : p ≠ 1/2 ​, the test statistic is z = -1.14.

α = 0.05.

P ( Z < -1.14 )

Using standard normal table

P ( Z < - 1.14 ) = 0.1271

P value = 0.1271

(b)

confidence level the z is ,

Z= Z_0.05 = 1.645 (from standard normal table)

Z= Z_0.05 = 1.65 (rounded)