A statistics student used a computer program to test the null hypothesis H,: p = .5 against the one-tailed alternative, Ha: p > .5. A sample of 500 observations are input into SPSS, which returns the output shown above.

a. The student concludes, based on thep-value, that there is a 33% chance that the alternative hypothesis is true.

Do you agree? If not, correct the interpretation.

b. How would thep-value change if the alternative hypothesis were two-tailed, Ha: p # .5? Interpret this p-value.

Applying the Concepts