$6.(20$ points$)$ You have been hired to analyze the validity of the balanced scorecard for a local restaurant chain. The general manager has provided you quarterly data by restaurant location $($posted on Canvas$).$ The data include sales, customer satisfaction, newspaper review, average wait, and staff training. The customer satisfaction and newspaper reviews are based on a scale of $0$ to $100.$ Customer wait is in minutes. Staff training is average number of restaurant employees who have had one or more of the company$$s in$-$house training in the past quarter as a proportion of total employees. Validity means that the measure contributes to an increase in sales over the prior quarter. What conclusions can you draw from your analysis?