The polling organization Ipsos conducted telephone surveys in March of 2004, 2005 and 2006. In each...
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The polling organization Ipsos conducted telephone surveys inMarch of 2004, 2005 and 2006. In each year, 1001 people age 18 orolder were asked about whether they planned to use a credit card topay federal income taxes that year. The data are given in theaccompanying table. Is there evidence that the proportion fallingin the three credit card response categories is not the same forall three years? Test the relevant hypotheses using a .05significance level. (Use 2 decimal places.) Intent to Pay Taxeswith a Credit Card 2004 2005 2006 Definitely/Probably WillMight/Might Not/Probably Not Definitely Not 46 172 791 47 173 76149 182 800 χ2 = P-value interval p < 0.001 0.001 ≤ p < 0.010.01 ≤ p < 0.05 0.05 ≤ p < 0.10 p ≥ 0.10
The polling organization Ipsos conducted telephone surveys inMarch of 2004, 2005 and 2006. In each year, 1001 people age 18 orolder were asked about whether they planned to use a credit card topay federal income taxes that year. The data are given in theaccompanying table. Is there evidence that the proportion fallingin the three credit card response categories is not the same forall three years? Test the relevant hypotheses using a .05significance level. (Use 2 decimal places.) Intent to Pay Taxeswith a Credit Card 2004 2005 2006 Definitely/Probably WillMight/Might Not/Probably Not Definitely Not 46 172 791 47 173 76149 182 800 χ2 = P-value interval p < 0.001 0.001 ≤ p < 0.010.01 ≤ p < 0.05 0.05 ≤ p < 0.10 p ≥ 0.10
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