Lower scores? Newspaper headlines recently announceda decline in science scores among high school seniors.In 2000, a total of 15,109 seniors tested by The NationalAssessment in Education Program (NAEP) scored amean of 147 points. Four years earlier, 7537 seniors hadaveraged 150 points. The standard error of the differencein the mean scores for the two groups was 1.22.a) Have the science scores declined significantly?Cite appropriate statistical evidence to support yourconclusion.b) The sample size in 2000 was almost double that in1996. Does this make the results more convincing orless? Explain.

Lower scores? Newspaper headlines recently announceda decline in science scores among high school seniors.In 2000, a total of 15,109 seniors tested by The NationalAssessment in Education Program (NAEP) scored amean of 147 points. Four years earlier, 7537 seniors hadaveraged 150 points. The standard error of the differencein the mean scores for the two groups was 1.22.a) Have the science scores declined significantly?Cite appropriate statistical evidence to support yourconclusion.b) The sample size in 2000 was almost double that in1996. Does this make the results more convincing orless? Explain.

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

ChapterP: Preliminary Concepts

SectionP.CT: Test

Problem 1CT

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