In recent years there has been considerable controversy over the use of standardized testing of high school students. Supporters say that the practice is a good measure of both student progress and teacher performance. Opponents say that too much testing impedes learning and causes unnecessarily large expenses for the school districts. There are even reports that a significant number of high school students opt out of taking some of the standardized tests. In one large city where the school district reported that the average score on a national test taken by students in their junior year was 74, a large group of parents felt that this average was too low. The parents contracted a research company in an attempt to show that the average score was higher than the claimed average of 74. The research company took a random sample of 100 juniors and they collected the corresponding 100 exam scores for those students. - what hypotheses is most appropriate to deal with the problem above. - What equation is most appropriate to deal with the problem above. -If the alternate hypothesis were modified in this problem to be a two-sided test using a not equal to symbol in the alternative hypothesis, and the test statistic turned out to be z = –1.59, then what is the p-value? -If the p-value for the test is 0. 0906, choose the most appropriate conclusion for the hypothesis test (Assume a significance level of 10%).

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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In recent years there has been considerable controversy over the use of standardized testing of high school students. Supporters say that the practice is a good measure of both student progress and teacher performance. Opponents say that too much testing impedes learning and causes unnecessarily large expenses for the school districts. There are even reports that a significant number of high school students opt out of taking some of the standardized tests. In one large city where the school district reported that the average score on a national test taken by students in their junior year was 74, a large group of parents felt that this average was too low. The parents contracted a research company in an attempt to show that the average score was higher than the claimed average of 74. The research company took a random sample of 100 juniors and they collected the corresponding 100 exam scores for those students.

- what hypotheses is most appropriate to deal with the problem above.

- What equation is most appropriate to deal with the problem above.

-If the alternate hypothesis were modified in this problem to be a two-sided test using a not equal to symbol in the alternative hypothesis, and the test statistic turned out to be z = –1.59, then what is the p-value?

-If the p-value for the test is 0. 0906, choose the most appropriate conclusion for the hypothesis test (Assume a significance level of 10%).

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