It is known that the population mean on the math portion of the sat is 500, with a standard deviation of 100. assume that the average math sat score for freshmen entering sullivan college is 550, with a standard deviation of 110. does the math performance of students entering your college differ significantly from that of all individuals taking the sat? what statistical analysis is used to answer this question? a) single-sample t test
b) z test
c) standard deviation analysis
d) dependent-samples t test