Help meee what is 2 + 2=

Goldfish/4

Step-by-step explanation:

Hope this helped:)

4

Step-by-step explanation:

-1 is 3 quik mafs

Correct option: (b) -1.96 and 1.96.

Step-by-step explanation:

In this case the researchers wants to determine whether there is a difference between the levels of job satisfaction for the two groups of teachers.

The groups are divided as follows:

Group 1: teachers are allowed to choose supplementary curriculum for their classes

Group 2: teachers were assigned all curricular resources for use in their classes.

The hypothesis to perform this test is defined as follows:

H₀: There is no difference between the levels of job satisfaction for the two groups of teachers, i.e. μ₁ - μ₂ = 0.

Hₐ: There is a significant difference between the levels of job satisfaction for the two groups of teachers, i.e. μ₁ - μ₂ ≠ 0.

The hypothesis defined suggests that the test is two-tailed, i.e. there are two rejection region.

The significance level of the test is, α = 0.05.

The z-test is used to perform the test.

Then the rejection regions are defined as follows:

Use the z-table for the two critical values as follows:

Thus, the critical value of z are -1.96 and 1.96.

Thus, the correct option is (b).