Question

Use the given information to find the Upper P​-value. The test statistic in a​ two-tailed test is zequals1.71. Click here to view page 1 of the Normal table. LOADING... Click here to view page 2 of the Normal table. LOADING... Upper P​-valueequals nothing ​(Round to four decimal places as​ needed.)

Answer 1

z = 1.71

I do not understand the meaning of the upper p-value. There is p-value for the two-tailed test or the left/right-tailed test. I have two possibilities in mind regarding the interpretation of the "upper p-value".

i.

Upper p-value can be defined as:

Upper p-value = P(Z>1.71) = 0.0436

ii.

But since this is a two-tailed test upper p-value may also mean p-value for the two-tailed test, So:

Upper p-value = 2*P(Z>1.71) (As both tails of the normal distribution will be included now)

= 0.0873

Please try both the answers.

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