1. Create standardized scores for all scale variables (price through alcohol). Which beverages have positive standardized scores on every variable? What does this mean?
2. What is the most extreme z-score on each variable? What is the most extreme z-score across all variables?
3. What beverage is most typical of all beverages, that is, has z-score values closest to 0 for these variables?
4. If the variable is normally distributed, what percentage of cases should be above 1 standard deviation from the mean or below 1 standard deviation from the mean? Calculate this percentage for a couple of the variables. Is the percentage of beverages with an absolute zscore above 1 close to the theoretical value?