Use the following information to answer the next four questions

Use the following information to answer the next four questions:

Junior' s Clothing has collected sales and discount information from several "Big Saturday" sales events.   This is shown in the table below:

Sales ($)	$3,250	$2,450	$2,850	$2,800	$2,500	$3,400	$3,250	$3,800
Discount	30%	15%	25%	20%	20%	30%	25%	35%

1. Plot the data.  Does there seem to be a linear relationship between the discount offered and sales on "Big Saturday" events?

Yes or No    

2. Calculate a regression line for this data (use whole numbers for the percent discount, that is, use 15 for 15%).  What is the value of the slope coefficient?

3. What is the value of the intercept coefficient for your regression line?

4. If Junior offers a 15% discount at the next "Big Saturday" event, what is your forecast of sales (based on your regression line)?