A statistics unit is required to determine whether or not there is an association between.students' performances in mathematics at Key Stage 3 and at GCE.A survey of the results of 500 students showed the following information:KeyStage 3Level876TotalA605540155GCE GradeB553238125C473135113Below C432638107Total205144151500(a) Use a x² test at the 10% level of significance to determine whether there is anassociation between students performances mathematics at Key Stage 3 and at GCE.(b) Comment on the number of students who gained a grade A at GCE having gained alevel 7 at Key Stage 3.

Answered: Image /qna-images/answer/2440744a-4c2a-4fa2-a71f-e57c81dc35b6.jpg

Answered: Key Stage 3 Level 8 7 6 Total A 60 55…

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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