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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 11 days demand and associated price resulted in the following data.
a.Using the above information, develop the least-squares estimated regression line.
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.Perform a t test to determine whether the slope is significantly different from zero. Let 0.05.
e.Would the demand ever reach zero? If yes, at what price would the demand be zero. Show your complete work.
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