5. The State of Wisconsin is interested in the performance of its eighth-grade students on the standardizec eighth-grade mathematics assessment test. A research team, tasked by the State, obtains a random samp of 101 eighth-grade student scores and finds that the sample mean is 265 and the sample standard deviation is 55. The scores are approximately normally distributed. (a) Construct a 95% confidence interval for the mean test score in the population of Wisconsin eigh graders and fully interpret your result. (b) The national average on this standardized eighth-grade mathematics assessment test is 260. Base on the available data from Wisconsin (as described above), would you conclude that the average performance of Wisconsin students is significantly different from the average national performance? Explain.

5. The State of Wisconsin is interested in the performance of its eighth-grade students on the standardizec eighth-grade mathematics assessment test. A research team, tasked by the State, obtains a random samp of 101 eighth-grade student scores and finds that the sample mean is 265 and the sample standard deviation is 55. The scores are approximately normally distributed. (a) Construct a 95% confidence interval for the mean test score in the population of Wisconsin eigh graders and fully interpret your result. (b) The national average on this standardized eighth-grade mathematics assessment test is 260. Base on the available data from Wisconsin (as described above), would you conclude that the average performance of Wisconsin students is significantly different from the average national performance? Explain.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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