One? study, based on responses from 1,025 randomly selected? teenagers, concluded that 43?% of teenagers cite grades as their greatest source of pressure. Use a 0.05 significance level to test the claim that fewer than half of all teenagers in the population feel that grades are their greatest source of pressure.
Formulate the null and alternative hypotheses. Choose the correct answer below.
H0?: p=0.5
Ha?: p<0.5
Find the test statistic.
z =
Find the? P-value for the found test statistic.
?P-value =