A company has recorded data on the daily demand for its product (y in thousands of units) and the unit price (x in hundreds of dollars). A sample of 15 days demand and associated prices resulted in the following data. 
a.Using the above information, develop the least-squares estimated regression line and write the equation.
b.Compute the coefficient of determination.
c.Perform an F test and determine whether or not there is a significant relationship between demand and unit price. Let 0.05.
d.Would the demand ever reach zero? If yes, at what price would the demand be zero?
Definitions:
Coupon Payments
Regular interest payments made to bondholders over the life of a bond.
Price Paid
The amount of money exchanged for the acquisition of a good, service, or asset.
Original Issue Discount
The difference between the face value of a bond and its offering price when the bond is issued at a lower price.
Semiannual Coupon
A fixed income security feature that represents the payment of interest to bondholders twice a year.
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