CHI-SQUARE-HOMOGEN-TEST

CHI-SQUARE-HOMOGEN-TEST - STATISTICS FOR MGMT DECISION...

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STATISTICS FOR MGMT DECISION MAKING CONTINGENCY TABLES CHI-SQUARE TEST FOR HOMOGENEITY FALL, 2014 Another type of contingency table problem is called the test of homogeneity. This test is used when one of the two variables is controlled by the experimenter so that the row (or column) totals are predetermined. An Illustration There is a piece of legislation proposed by the governor. We want to find out whether the proportions of people who favor the proposed piece of legislation is the same for all residents. Most residents are urban and suburban dwellers although there are still a few rural dwellers. We thus have decided to poll 200 urban dwellers, 200 suburban dwellers and 100 rural dwellers. We thus want to predetermine registered voters poll totals. Governor’s Proposal► TOTAL Type of Residence▼ FAVOR OPPOSE URBAN 200 SUBURBAN 200 RURAL 100 TOTAL 500 We’ll poll 500 voters, 200 urban dwellers, 200 suburban dwellers and 100 rural dwellers. Each person will be asked whether she/he favors or does not favor the governor’s proposal.
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