(4,00 Puanlar)28- To test the effectiveness of a business school preparation course, 8 students took a general business test before andafter the course. The results are given below.Exam ScoreExam ScoreStudentBefore Course (1)After Course (2)53067069077013.9101,0004700710450550820870820770630610The value of the sample mean difference isif the difference scores reflect the results of the exam after thecourse minus the results of the exam before the course.a)b)68C)50d)400

How to find Sample difference mean 1. Find the difference between after score and before score 2.…

(4,00 Puanlar) 28 - To test the effectiveness of a business school preparation course, 8 students took a general business test before and after the course. The results are given below. Exam Score Exam Score Student Before Course (1) After Course (2) 1 530 670 12 690 770 910 1,000 4 700 710 450 550 820 870 820 770 630 610 The value of the sample mean difference is course minus the results of the exam before the course. if the difference scores reflect the results of the exam after the a) 0 b) 68 C) 50 d) 400

(4,00 Puanlar) 28 - To test the effectiveness of a business school preparation course, 8 students took a general business test before and after the course. The results are given below. Exam Score Exam Score Student Before Course (1) After Course (2) 1 530 670 12 690 770 910 1,000 4 700 710 450 550 820 870 820 770 630 610 The value of the sample mean difference is course minus the results of the exam before the course. if the difference scores reflect the results of the exam after the a) 0 b) 68 C) 50 d) 400

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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South Dakota prices vary $350,000: $400,000:$400,000:$425,000:$429,000: $440,000: $560,000: $585,000,: $585,000: $785,000 : $1,300,000. We found the following Mean = 569000 SD = 272703.1353 T score = .7113 P Value = .4932 We failed to reject the hypothesis. What is a 95% confidence interval and how would you create one for the population average price? What would it look like. How does this related to Central limit therorem? If you had a margin of error of $13,000 how large of sample would you need with a 90% confidence interval using the given tscore.
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26
What is the mean of all the ninth graders scores?
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