Question 15 0.5 pts A private school promoted itself by advertising that its graduates had an average SAT verbal score of 550 with a standard deviation of 100. At the end of the school year, the Parent-Teacher Association (PTA) decided to see if the SAT scores for students at the school were different from the advertised average and found that the average SAT verbal score for 80 graduating seniors was 532. Using the .05 significance level, what should the PTA conclude about the school's claim? What is the cutoff score? O Cutoff (.01 level, two tailed) =12.33 Cutoff (.05 level, two-tailed) = +1.96. O Cutoff (.05 level, one-tailed) = 1.96. Cutoff (.05 level, two tailed) =+1.64