1. The U.S. is divided into four census regions: Northeast (Region=1), Midwest (Region=2), South (Region=3), and West (Region=4). The 2012 Current Population Survey, conducted by the U.S. Census Bureau, asked a sample of n = 132,747 households how many computers they own. Here are the sample means from SPSS. Region 1 2 3 4 Mean Computers 1.70 1.58 1.49 1.68 Does mean household computer ownership differ across those four regions? a) Specify the null and alternative hypotheses for an ANOVA test. N 26711 30910 41245 33881 b) In the following SPSS output, circle the test statistic. Between Groups Within Groups Total Sum of Squares 1017.029 143453.994 144471.023 ANOVA df Mean Square 339.010 1.081 3 132743 132746 F 313.697 Sig. 000

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