3. The following table is a cross-tabulation of home ownership and location of residence.

	Own home	Do not own home
Urban	31	59
Rural	29	41

Conduct a hypothesis test to determine if home ownership and location of residence are independent random variables. Use a 5% level of significance.

4. You have the following random sample of the number of daily calls to police stations in the cities of Baltimore, Washington DC, and Pittsburgh.

Baltimore	Washington DC	Pittsburgh
862	555	755
766	664	763
608	610	802
911	709	712
980	612	765
888	589	679
812	649	789
678	700	714
765	707	599
709	579	671
808	622	683

1. Test the hypothesis that the mean number of daily calls differs across the three cities. The total sum of squares (SST) is equal to 330,463.64. Use a 5% level of significance.

1. What is the difference between ANOVA with two categories and a two-sample t-test for differences in means?