QUESTION 1 For the following pairs of values state the decis

QUESTION 1 For the following pairs of values, state the decision that will occur and why? P-value = 0.014, =0.02

Solution

1.

As p < alpha, we REJECT THE NULL HYPOTHESIS.

2.

This is a two tailed test, by the use of =/ in Ha.

Thus, dividing alpha by 2, 0.01, the critical z scores are:

zcrit = -2.326, 2.326 [answer, critical values]

The rejection regions are: z < -2.326 or z > 2.326 [answer, rejection region]

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3.

This time, it is a one tailed test, by the use of >.

Thus, using the area 0.01,

zcrit = 2.326 [answer]

and the rejection region is z > 2.326. [answer]