Twenty five high school students complete a preparation programfor taking the SAT test. Here are the SAT scores from the 25students who completed the SAT prep program: 434 694 457 534 720400 484 478 610 641 425 636 454 514 563 370 499 640 501 625 612 471598 509 531 The mean of these scores is 536.00. We know that thepopulation average for SAT scores is 500 with a standard deviationof 100. The question is, are these students’ SAT scoressignificantly greater than a population mean of 500 with apopulation standard deviation of 100 ? Note that the the maker ofthe SAT prep program claims that it will increase (and notdecrease) your SAT score. So, you would be justified in conductinga one-directional test. (alpha = .05).
Choose between
A - The prep program didn't result in significant improvement inSAT scores
B- The prep program resulted in significant improvement in SATscores
