Question
The National Assessment of Educational Progress (NAEP) includes a mathematics test for eighth-grade students. Scores on the test range from 0 to 500. Suppose that
The National Assessment of Educational Progress (NAEP) includes a mathematics test for eighth-grade students. Scores on the test range from 0 to 500. Suppose that you give the NAEP test to an SRS of 900 8th-graders from a large population in which the scores have mean= 285 and standard deviation= 125. The meanwill vary if you take repeated samples.
Suppose that an SRS of 900 8th-graders has= 288. Based on this sample, a 95% confidence interval foris:
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Basic College Mathematics (Subscription)
Authors: Elayn Martin Gay
6th Edition
0134844947, 9780134844947
