A guidance counselor selected random samples of 25 ninth graders, 25 tenth graders, 25 eleventh graders, and25 twelfth graders from her large high school. She asked each student whether they have a job. The results aredisplayed in the tables.Observed counts:Grade Level9th10th11th12thYes3121519Employed?No2213106Expected counts:Grade Level9th10th11th12thYes12.2512.2512.2512.25Employed?No12.7512.7512.7512.75She decides to test these hypotheses:H.: There ie no difference in the distribution of ioh status for all Qth 10th 11th and 12th araders at this biah Grade Level9th10th11th12thYes12.2512.2512.2512.25Employed?No12.7512.7512.7512.75She decides to test these hypotheses:Ho: There is no difference in the distribution of job status for all 9th, 10th, 11th, and 12th graders at this highschool.Hg: There is a difference in the distribution of job status for all 9th, 10th, 11th, and 12th graders at this highschool.The conditions for inference are met. What is the value of the chi-square test statistic and what are the degrees offreedom for this test?O x? = 4.71, df = 3O x? = 4.71, df = 7O x2 = 22.21, df = 3O x? = 22.21, df = 7

Answered: Image /qna-images/answer/b4ede6f4-e2d3-4656-9a5c-c06404b70961.jpg

Answered: A guidance counselor selected random…

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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