The Whoville Economics Institute (WEI) is studying the relation between household income and marble preference. To test the claim that marble color preference is related
The Whoville Economics Institute (WEI) is studying the relation between household income and marble preference. To test the claim that marble color preference is related to income class, a team of WEI Whos surveyed a simple random sample of 240 adult Whos, and for each Who in the sample, they noted their marble color preference and their income class. The results were recorded in the contingency table below. Color preference Red Blue Green Other Income class _ Low 23 28 19 12 Middle 25 39 24 7 High 29 15 11 8 Use the data above to test the claim that marble color preference and income class are dependent. . Carefully state the hypotheses. . Use a 5% significance level. . Show how you find the value of the test-statistic and how you find (or estimate) the p- value. . State your decision and summarize your conclusions
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