8. Five years ago, the average math SAT score for students at one school was 475. A teacher wants to perform a hypothesis test to determine whether the mean math SAT score of students at the school has changed. The mean math SAT score for a random sample of 40 students from this school is 469. Do the data provide sufficient evidence to conclude that the mean math SAT score for students at the school has changed from the previous mean of 475? Assume that o = 73. Use the given information and p-value approach hypothesis test to determine if at the 10% significance level, the data suggest that, on the average, math SAT score for students at the school has changed from the previous mean of 475. Assume the scores are normally distributed with population standard deviation of 73. Ha: μ- 475 Ha: µ# 475 test statistic: z =-0.0822

8. Five years ago, the average math SAT score for students at one school was 475. A teacher wants to perform a hypothesis test to determine whether the mean math SAT score of students at the school has changed. The mean math SAT score for a random sample of 40 students from this school is 469. Do the data provide sufficient evidence to conclude that the mean math SAT score for students at the school has changed from the previous mean of 475? Assume that o = 73. Use the given information and p-value approach hypothesis test to determine if at the 10% significance level, the data suggest that, on the average, math SAT score for students at the school has changed from the previous mean of 475. Assume the scores are normally distributed with population standard deviation of 73. Ha: μ- 475 Ha: µ# 475 test statistic: z =-0.0822

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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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