weight$-$loss clinic wants to use regression analysis to build a model for weignt loss of a client $($measured in pounds$).$ Two variables thought to affect weight loss are client's length of time on the weight$-$loss program and time of session. These variables are described below:Y $=$ Weight loss $($in pounds$)$X$1=$ Length of time in weight$-$loss program $($inmonths$)$ X$2=1$ if morning session, O if notData for $25$ clients on a weight$-$loss program at the clinic were collected and used to fit the model with interaction term:Y$=60+8171+$ B$2$X$2+$ B$3$X$1$X$2+$E