Compute the observed significance of each test Testing H00 v

Compute the observed significance of each test.

Testing H0:=0 vs. Ha:0, test statistic z = 2.82.

Testing H0:=18.4 vs. Ha:<18.4,test statistic z=1.74.

Testing H0:=63.85 vs. Ha:>63.85, test statistic z = 1.93.

Solution

A)

This is a two tailed test.

Using table/technology, the two tailed P value for z = 2.82 is

P = 2*0.002401182 = 0.004802365 [ANSWER]

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b)

This is a left tailed test.

Using table/technology, the left tailed P value for z = -1.74 is

P = 0.040929509 [ANSWER]

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c)

This is a right tailed test.

Using table/technology, the right tailed P value for z = 1.93 is

P = 0.026803419 [ANSWER]