# chi-square - Chi-square tests for tables Example 1 options...

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Unformatted text preview: Chi-square tests for tables Example 1 options linesize= 54 pagesize= 55 ; data one; infile 'D:\sta4102a\descriptive2\grades.dat' ; input id \$ gender \$ year quiz exam1 exam2 lab finexam; quiz = quiz* 2 ; finexam = finexam/ 2 + 10 ; course = 0.1 *quiz + 0.2 *(exam1+exam2) + 0.1 *lab + 0.4 *finexam; course = course/ 100 ; if course >= 0.90 then coursltr = 'A' ; else if 0.90 > course >= 0.80 then coursltr = 'B' ; else if 0.80 > course >= 0.70 then coursltr = 'C' ; else if 0.70 > course >= 0.60 then coursltr = 'D' ; else if 0.60 > course then coursltr = 'F' ; if quiz > 90 and (exam1 > 80 or exam2 > 80 ) then outcome= 'expected ' ; else outcome= 'unexpected' ; run ; proc means ; var course quiz exam1 exam2 lab finexam; title 'Summary Statistics from Statistics Class' ; run ; proc freq ; tables coursltr coursltr*year gender*year outcome*gender / chisq expected ; title 'Grades from Statistics Class' ; run ; Summary Statistics from Statistics Class The MEANS Procedure Variable N Mean Std Dev Minimum Maximum ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ course 49 0.8404286 0.1056415 0.5590000 1.0040000 quiz 49 85.6734694 13.1234329 40.0000000 100.0000000 exam1 49 80.5306122 17.5856263 33.0000000 100.0000000 exam2 49 90.5714286 10.1837289 51.0000000 100.0000000 lab 49 93.5306122 6.8132898 63.0000000 100.0000000 finexam 49 79.7551020 13.8688509 47.0000000 105.5000000 ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ...
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chi-square - Chi-square tests for tables Example 1 options...

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