Many restaurants and eateries are now posting calorie counts on their menus. We wonder if providing the calories results in customers ordering fewer calories than when the calories are not provided. We will use data from Starbucks gathered on every transaction for a year at multiple shops in multiple cities. Given the scope of the data, we consider it population data with a mean of 247 and standard deviation of 201, We then gather a random sample of 1000 orders from Starbucks that have begun posting calorie counts. We find our sample has a mean of 232 and a standard deviation of 180.
Which analysis is appropriate for this situation?
Conduct all the steps of the analysis (skip verifying the assumptions).