- 6 20 Students From A High School Took A Standardized Test And Their Scores Were 485 615 555 518 532 608 512 590 545 495 1 (56.96 KiB) Viewed 23 times
6. 20 students from a high school took a standardized test and their scores were 485 615 555 518 532 608 512 590 545 495
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6. 20 students from a high school took a standardized test and their scores were 485 615 555 518 532 608 512 590 545 495
6. 20 students from a high school took a standardized test and their scores were 485 615 555 518 532 608 512 590 545 495 519 501 560 480 490 495 544 574 539 549 The same students received tutoring for a period of time and repeated the test. The new scores were: 501 617 555 533 546 611 571 595 555 578 539 501 544 580 490 602 599 498 539 549 1 Find the average score of the students before and after the tutoring and report the standard deviations. Since the samples are linked (same students) the test is a paired one. Find at a confidence level of 95% if the tutoring changed the average performance of these students significantly (10)
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