Open your data set from Assignment $6$ in Excel.

Create the squared term for temperature.

Add a qualitative variable to your data set$-$weekend or weekday $($you can call this "Day" for brevity$).$ Code weekdays as $0$ and weekends as $1($if you want to find an effect, you may want to code the busier days as $1,$ but this is not necessary$).$

Create an interaction between temperature and weekend$/$weekday$.$

Create an interaction between temperature squared and weekend$/$weekday$.$

Insert a screenshot of your new data set below.