8. The accompanying two-way frequency table appears in an article about marijuana use in college. Each of 440 college students was classified according to both frequency of marijuana use and parental...

Extracted text: 8. The accompanying two-way frequency table appears in an article about marijuana use in college. Each of 440 college students was classified according to both frequency of marijuana use and parental use of alcohol and psychoactive drugs. Do the data suggest that parental usage and student usage are independent in the population from which the sample was drawn? Use a significance level of 0.01. Standard Level of Marijuana Usage Never Occasional Regular Never 142 55 40 Parental Use of Occasional 68 45 51 Alcohol and Drugs Regular 10 11 19