Question 20 3 pts A professor claimed that a majority (more than 50%) of her students believe in ghosts. To test her claim she polled 250 students. Of those polled 145 said yes, they believe in ghosts. With a significance level of a=0.05 do these results support her claim? What is the alternative hypothesis for this test? O HO TT > 0.50 O HO TT 0.50 O HA T > 0.50