The following display from a TI84 Plus calculator presents t

The following display from a TI-84 Plus calculator presents the results of a hypothesis test for the difference between two proportions. The sample sizes are n1 = 108 and n2=75. Is this a left-tailed test, a right-tailed test, or a two-tailed test? Select one: A. Right-tailed test B. Left-tailed test C. Two-tailed test

Solution

It is a right tailed test as testing for whether p1 > p2.

Two tailed test only if p1 not equal to p2

and left tailed if p1 < p2

But here it is p1>p2, hence right tailed test.