The following data show the retail price for 12 randomly
The following data show the retail price for 12 randomly selected laptop computers along with their corresponding processor speeds in gigahertz.


a. Develop a linear equation that can be used to describe how the price depends on the processor speed.
b. Based on your regression equation, is there one machine that seems particularly over- or underpriced?
c. Compute the correlation coefficient between the two variables. At the .05 significance level, conduct a test of hypothesis to determine if the population correlation is greater thanzero.
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