document.write( "Question 133034: Professor Greens multiple choice test had 50 questions with the distribution of correct answers shown below. At a -.50 can you reject the hypothesis that Prof. Greens exam answers came from a uniform population.?\r
\n" );
document.write( "\n" );
document.write( "a 8
\n" );
document.write( "b 8
\n" );
document.write( "c 9
\n" );
document.write( "d 11
\n" );
document.write( "e 14
\n" );
document.write( "total 50 \n" );
document.write( "
Algebra.Com's Answer #97262 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Professor Greens multiple choice test had 50 questions with the distribution of correct answers shown below. At a -.50 can you reject the hypothesis that Prof. Greens exam answers came from a uniform population.? \n" ); document.write( "a 8 \n" ); document.write( "b 8 \n" ); document.write( "c 9 \n" ); document.write( "d 11 \n" ); document.write( "e 14 \n" ); document.write( "total 50 \n" ); document.write( "-------------- \n" ); document.write( "Ho: The proportions are all equal \n" ); document.write( "Ha: At least one of the proportions is different. \n" ); document.write( "--------------------------------------------------- \n" ); document.write( "Run a Chi-Sq on the data with Expected value for a,b,c,d,e = 10 \n" ); document.write( "--------------------------------------------------- \n" ); document.write( "To generate the test statistic: \n" ); document.write( "1. Find (observed - expected)^2/expected for a,b,c,d,e \n" ); document.write( "2. Add those results \n" ); document.write( "Test statistic = 2.6 \n" ); document.write( "------------------------ \n" ); document.write( "Critical value for 1-tail Chi-Sq with alpha=5% and df=10-1=9 is 16.919 \n" ); document.write( "------------------------ \n" ); document.write( "Since 2.6 < 16.919, Fail to reject Ho. \n" ); document.write( "The proportions are equal; the distribution is statistically uniform. \n" ); document.write( "------------------------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |