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performance. Opponents say that too much testing impedes learning and causes ssarily large expenses for the school districts. There are even reports that a significant of high school students opt out of taking some of the standardized tests. In one large he school district reported that the average score on a national test taken by students i ear was 74, a large group of parents felt that this average was too low. The parents col rch company in an attempt to show that the average score was higher than the claimed e of 74. The research company took a random sample of 100 juniors and they collected onding 100 exam scores for those students. the hypotheses most appropriate to deal with the problem above. -) b) Ho: μ = 74 Ho: μ> 74 =) Ho: μ =74 Ho: μ< 74 Ho: P = 0.74 Ho: p > 0.74 d) Ho: P = 0.74 Ho: P < 0.74 the equation most appropriate to deal with the problem above. P-Po ) z* = b) z c) == Po(1-P) d) z* = -=-H e alternate hypothesis were modified in this problem to be a two-sided test using a not ol in the alternative hypothesis, and the test statistic turned out to be z = -1.59, then w alue? ) 0.1118 b) 0.1297 c) 0.1069 d) 0.0559 e p-value for the test is 0. 0638, choose the most appropriate conclusion for the hypoth sume a significance level of 5%). )At the 5% significance level there is sufficient evidence to support the belief of the gr arents that the true mean of the national test scores is higher than the school district r verage of 74. )At the 5% significance level there is insufficient evidence to support the belief of the arents that the true mean of the national test scores is lower than the school district re verage of 74. )At the 5% significance level there is sufficient evidence to support the belief of the gr arents that the true mean of the national test scores is lower than the school district re verage of 74. 1) At the 5% significance level there is insufficient evidence to support the belief of the arents that the true mean of the national test scores is higher than the school district r verage of 74.

performance. Opponents say that too much testing impedes learning and causes ssarily large expenses for the school districts. There are even reports that a significant of high school students opt out of taking some of the standardized tests. In one large he school district reported that the average score on a national test taken by students i ear was 74, a large group of parents felt that this average was too low. The parents col rch company in an attempt to show that the average score was higher than the claimed e of 74. The research company took a random sample of 100 juniors and they collected onding 100 exam scores for those students. the hypotheses most appropriate to deal with the problem above. -) b) Ho: μ = 74 Ho: μ> 74 =) Ho: μ =74 Ho: μ< 74 Ho: P = 0.74 Ho: p > 0.74 d) Ho: P = 0.74 Ho: P < 0.74 the equation most appropriate to deal with the problem above. P-Po ) z* = b) z c) == Po(1-P) d) z* = -=-H e alternate hypothesis were modified in this problem to be a two-sided test using a not ol in the alternative hypothesis, and the test statistic turned out to be z = -1.59, then w alue? ) 0.1118 b) 0.1297 c) 0.1069 d) 0.0559 e p-value for the test is 0. 0638, choose the most appropriate conclusion for the hypoth sume a significance level of 5%). )At the 5% significance level there is sufficient evidence to support the belief of the gr arents that the true mean of the national test scores is higher than the school district r verage of 74. )At the 5% significance level there is insufficient evidence to support the belief of the arents that the true mean of the national test scores is lower than the school district re verage of 74. )At the 5% significance level there is sufficient evidence to support the belief of the gr arents that the true mean of the national test scores is lower than the school district re verage of 74. 1) At the 5% significance level there is insufficient evidence to support the belief of the arents that the true mean of the national test scores is higher than the school district r verage of 74.

MATLAB: An Introduction with Applications
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. 15. Pick the hypotheses most appropriate to deal with the problem above. a) b) Ho: μ = 74 Ho: μ > 74 c) Ho: μ = 74 Ho: μ < 74 Ho: P = 0.74 Ho:p> 0.74 d) Ho: p = 0.74 Ho: p < 0.74 16. Pick the equation most appropriate to deal with the problem above. P-Po a) z* = b) z* == c) == Po(1-Po) n d) z* = -H 17. 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? a) 0.1118 b) 0.1297 c) 0.1069 d) 0.0559 18. If the p-value for the test is 0. 0638, choose the most appropriate conclusion for the hypothesis test (Assume a significance level of 5%). a) At the 5% significance level there is sufficient evidence to support the belief of the group of parents that the true mean of the national test scores is higher than the school district reported average of 74. b) At the 5% significance level there is insufficient evidence to support the belief of the group of parents that the true mean of the national test scores is lower than the school district reported average of 74. c) At the 5% significance level there is sufficient evidence to support the belief of the group of parents that the true mean of the national test scores is lower than the school district reported average of 74. d) At the 5% significance level there is insufficient evidence to support the belief of the group of parents that the true mean of the national test scores is higher than the school district reported average of 74.
Transcribed Image Text: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. 15. Pick the hypotheses most appropriate to deal with the problem above. a) b) Ho: μ = 74 Ho: μ > 74 c) Ho: μ = 74 Ho: μ < 74 Ho: P = 0.74 Ho:p> 0.74 d) Ho: p = 0.74 Ho: p < 0.74 16. Pick the equation most appropriate to deal with the problem above. P-Po a) z* = b) z* == c) == Po(1-Po) n d) z* = -H 17. 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? a) 0.1118 b) 0.1297 c) 0.1069 d) 0.0559 18. If the p-value for the test is 0. 0638, choose the most appropriate conclusion for the hypothesis test (Assume a significance level of 5%). a) At the 5% significance level there is sufficient evidence to support the belief of the group of parents that the true mean of the national test scores is higher than the school district reported average of 74. b) At the 5% significance level there is insufficient evidence to support the belief of the group of parents that the true mean of the national test scores is lower than the school district reported average of 74. c) At the 5% significance level there is sufficient evidence to support the belief of the group of parents that the true mean of the national test scores is lower than the school district reported average of 74. d) At the 5% significance level there is insufficient evidence to support the belief of the group of parents that the true mean of the national test scores is higher than the school district reported average of 74.
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