It is generally believed that no more than 050 of all babies

It is generally believed that no more than 0.50 of all babies in a town in Texas are born out of wedlock. A politician claims that the proportion of babies that are born out of wedlock is increasing, identify the correct null and alternative hypotheses to test the politician\'s claim. H_0:p 0.50 and H_A : p > 0.50 H_0 :p 0.50 and H_A : p > 0.50 H_0: p = 0.50 and H_A : p 0.50 H_0: p 0.50 and H_A : p

Solution

Note that the claim of the politician is a new claim, so that is the alternative hypothesis. Thus,

Ho: p <= 0.50
Ha: p > 0.50 [ANSWER, B]

**************************

We use the symbol p because hypotheses always refer to the population parameter (p), not the sample statistic (p-bar).