An education researcher claims that the overall average score of 15-year-old students on an international mathematics literacy test is 494. You want to test this claim. You randomly select the average scores of 33 countries. The results are listed below. At= 0.05, do you have enough evidence to reject the researcher's claim?561 554 536 531 523 518 515 511 506 500 499493 490 489 485 482 482 479 477 466 453 448439 432 423 421 413 407 394 388 386 376 368

Include equations an p-value