Question: A company sets different prices for a particular DVD system in eight different regions of the country. The accompanying table shows the numbers of units

A company sets different prices for a particular DVD system in eight different regions of the country. The accompanying table shows the numbers of units sold and the corresponding prices (in dollars).
a. Graph these data, and estimate the linear regression of sales on price.
b. What effect would you expect a $50 increase in price to have on sales?

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