The following data relate the sales figures of the bar in Mark$$ Kaltenbach's small$$ bed$-$and$-$breakfast inn in$$ Portland, to the number of guests registered that$$ week:

$$

Week

Guests

Bar Sales

$1$

$16$

$$$$320$

$2$

$12$

$$$$265$

$3$

$18$

$$$$390$

$4$

$14$

$$$$315$

Part $2$

$$a$)$ The simple linear regressionLOADING... equation that relates bar sales to number of guests$($not to$$ time$)$ is $($round your responses to one decimal$$ place$)$:

Bar Sales$=$

$$

enter your response here $+$

$$

enter your response heretimesguests

Part $3$

$$b$)$ If the forecast is $24$ guests next$$ week, the bar sales are expected to be $$$

$$

enter your response here $($round your response to one decimal$$ place$).$