A least squares regression line
a. can be used to predict a value of y if the corresponding x value is given.
b. implies a cause-and-effect relationship between x and y.
c. can only be determined if a good linear relationship exists between x and y.
d. ensures that the predictions of y outside the range of the values of x are valid.
a
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Refer to the above table. If the price of a magazine is $2 and the price of a paperback book is $5 and the consumer has $19, the rational consumer will purchase
A) 2 magazines and 2 books. B) 2 magazines and 3 books. C) 5 magazines and 6 books. D) 6 magazines and 6 books.
A normal type size is 12- too 14-points
a. true b. false
T1 leased lines run at a speed of about ________
A) 250 kbps B) 1 Mbps C) 10 Mbps D) 45 Mbps
In defining the industry, an application should be conceptualized not in its use but as a physical item.
Answer the following statement true (T) or false (F)