A study of 345 Hispanic women in New York City finds that neighborhood Spanish linguistic isolation is a significant predictor of a healthy diet.

Neighborhood Spanish linguistic isolation is one of the x variables. Neighborhood Spanish linguistic isolation is measured as the percent of the households in which no one speaks only English, or where no one speaks both Spanish and English "very well".

Healthy diet is the y variable. Healthy diet is defined as a diet high in vegetables, legumes, and fish. Healthy Diet is measured as a dummy variable where each woman either adhered to a healthy diet or did not.

After controlling for age, ethnicity (Mexican, Puerto Rican, Dominican, other), neighborhood poverty rate and a few more variables, researchers found a positive, statistically significant b coefficient for neighborhood linguistic isolation.

29. Name three independent (x) variables from this regression.

30. The b coefficient for linguistic isolation is statistically significant. Choose the only correct conclusion based on the variable's statistical significance.

a. Linguistic isolation causes women to have healthy diets. b. Linguistic isolation is important. c. It is unlikely that, after controlling for the other variables, linguistic isolation has no relationship at all to healthy diet adherence in the larger population of all Hispanic women in New York City. d. It is likely that, after controlling for the other variables, linguistic isolation has no relationship at all to healthy diet adherence in the larger population of all Hispanic women in New York City.

31. The b coefficient for linguistic isolation is statistically significant. Choose the only correct conclusion based on the variable's statistical significance.

a. The p value for linguistic isolation is low, probably less than .10. b. The p value for linguistic isolation in high, probably more than .10