Scenario: The mean score for all high school seniors taking a college entrance exam is 500. Advocates for a charter school boast that their program helps to increase student exam scores. For a random sample of 100 students from the charter school, the mean exam score is 516 with a standard deviation of 90. Test the school's claim that their program improves student test scores. Question: In symbols, the alternative hypothesis for this test would be: 7) ,u, = 500 :7 p, = 516 A it 79 500 Qua/E516