6. There are ongoing arguments if single parent families are more impoverished than two parent families. A researcher collects the data below. Using the technique of Chi-Square test at the .10 significance level see if there is some association between treatment and weight loss. What do you conclude?

Family Structure
Family Income	One Parent	Two Parents	Total
Below poverty level	45	35
Not at poverty level	35	46
Total

7. A researcher is interested in seeing if traffic stops in her city by local police changes based on the race of the individual. She obtains the racial distribution of drivers in the city from the census and then takes a sample of stops by race. The data is presented below. Using Chi-Square goodness of fit test the model that the data is matches the actual distribution of drivers of that race in the city at the .10 level. What do you conclude?

	Model	Data	E	O-E	(O-E)2	(O-E)2/E
White	68%	154
Black	22%	54
Other	10%	32