A chi-square tes.

Q1.A chi-square tes. If one variable is classified into 4 categories and the other variable is classified into 2 categories, then assuming no assumptions are violated, how many degrees of freedom does the appropriate the chi-square statistic have?

Q2.A researcher was comparing several groups of male subjects to examine the effect of diet on mean BMI change following 16 weeks of dieting. The researcher obtained an F-ratio of 6.97 with df = 6, 133 from an independent-measures One Way ANOVA. Assuming there are no missing values, what is the total number of treatment groups G being compared in the study?(Ple give me a simple calculate process)