In a one-tailed hypothesis test (upper tail), the test statistic is determined to be 2.5. the p-value for this test is
a. .0228
b. .0062
c. .0056
d. .5228
Solution
Upper tailed z value is 2.5
P(z > 2.5) = 1 - P(z < 2.5) = 1 - 0.9938 = 0.0062
P-value = 0.0062
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