In October 2018, the household budget on food was normally distributed with a mean of 800 and standard deviation of 100 while the household budget on transportation was normally distributed with a mean of 500 and standard deviation 60. Ryan's family spent $900 on food and 680 on transportation in October 2018. On which type of spending (food or transportation) did Ryan's family spend more relative to other households? [hintz We cannot compare raw scores directly. In this case, we have two normal distributions with different mean and standard deviation. We need to transform Ryan's family spending on food and transportation to z-scores