The file P08_18.xlsx categorizes 250 randomly selected consumers on the basis of their gender, their age, and

Question:

The file P08_18.xlsx categorizes 250 randomly selected consumers on the basis of their gender, their age, and their preference for our brand or a competitor’s brand of a low-calorie soft drink. Use a chi-square test for independence to see whether the drink preference is independent of gender, and then whether it is independent of age. If you find any dependence, discuss its nature.