An SAT prep course claims to improve the test score of students. The table below shows the scores for seven students the first two times they took the verbal SAT.Before taking the SAT for the second time, each student took a course to try to improve his or her verbal SAT scores. Do these results support the claim that the SATprep course improves the students' verbal SAT scores?Let d = (verbal SAT scores prior to taking the prep course)-(verbal SAT scores after taking the prep course). Use a significance level of a = 0.01 for the test.Assume that the verbal SAT scores are normally distributed for the population of students both before and after taking the SAT prep course.1234567520 570 540 380 370 490 450StudentScore on first SATScore on second SAT540600 610 470 410 510 480Step 1 of 5: State the null and alternative hypotheses for the test.Answer0Ho: Md0Ha MaIA IV V A ||<=Copy DataTablesKeypadKeyboard Shortcuts

The objective of the question is to test the claim that the SAT prep course improves the students'…

Answered: An SAT prep course claims to improve…

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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The values listed below are waiting times (in minutes) of customers at two different banks. At Bank A, customers enter a single waiting line that feeds three teller windows. At Bank B, customers may enter any one of three different lines that have formed at three teller windows. Answer the following questions. Bank A Bank B 6.4 4.2 6.6 5.4 6.7 5.7 < 6.8 6.2 7.1 6.7 Click the icon to view the table of Chi-Square critical values. 7.3 7.7 7.5 7.7 Construct a 95% confidence interval for the population standard deviation o at Bank A. min < Bank A min (Round to two decimal places as needed.) 7.9 8.5 7.9 9.3 7.9 10.0 Question Viewer ho

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