You use software to carry out a test of significance. The program tells you that

Question

You use software to carry out a test of significance. The program tells you that the P value is P = 0.031. This result is (a) not significant at either alpha = 0.05 or alpha = 0.01. (b) significant at alpha = 0.05 but not at alpha = 0.01. (c) significant at both alpha = 0.05 and alpha = 0.01. The z statistic for a one-sided test is z = 2.433. This test is (a) not significant at either alpha = 0.05 or alpha = 0.01. (b) significant at alpha = 0.05 but not at alpha = 0.01. (c) significant at both alpha = 0.05 and alpha = 0.01.

Explanation / Answer

the result is significant if p<alpha and the result is not significant if p>alpha

given p=0.031<0.05 therefore the result is significant at alpha=0.05

0.031>0.01 the result is not significant at alpha =0.01

option B is correct.

significant at 0.05 but not 0.01

2) given z=2.433

by using p value calculator p=0.007 for one-sided z=2.433

p<0.05 and p<0.01

the result is significant at both 0.05 and 0.01

option C is correct.

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