If Excel Estimated the 95 Percent Confidence Interval for a Slope

Multiple Choice

If Excel estimated the 95 percent confidence interval for a slope coefficient for the price to run from - 15.50 to - 12.30, which of the following is true?

A) You are 95 percent confident that in response to dollar increase in price, consumers will decrease the quantity demanded by an amount greater than 12.30.
B) You are 95 percent confident that in response to dollar increase in price, consumers will increase the quantity demanded by an amount that lies between 12.30 and 15.50.
C) You are 95 percent confident that in response to dollar increase in price, consumers will decrease the quantity demanded by an amount that lies between 12.30 and 15.50.
D) You are 95 percent confident that in response to dollar increase in price, consumers will decrease the quantity demanded by an amount less than 15.50.