We consider the differences between the reading and writing scores of a random sample of 200 students who took the High School and Beyond Survey. The mean and standard deviation of the differences areXread= -0.531 and 8.858 points.write(a) Calculate a 95% confidence interval for the average difference between the reading and writing scores of all students. (Round your answers to two decimal places.)(b) Interpret this interval in context. (Round your answers to two decimal places.)We are 95% confident that on the reading test students score, on average,points lower toYou may need to use the appropriate table in the Appendix of Tables to answer this question.points higher than they do on the writing test.(c) Does the confidence interval provide convincing evidence that there is a real difference in the average scores? Explain.Since 0 isincluded in the interval, the confidence interval does notprovide convincing evidence that there is a real difference in the average scores.

The sample size is 200, the mean is -0.531 and the standard deviation is 8.858.

Answered: We consider the differences between the…

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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