SOLUTION: A linear regression between Y and X produced the following equation for the least squares line:
= 2.15 – 3.2x
Which of the following statements concerning this relationship i
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-> SOLUTION: A linear regression between Y and X produced the following equation for the least squares line:
= 2.15 – 3.2x
Which of the following statements concerning this relationship i
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Question 140361: A linear regression between Y and X produced the following equation for the least squares line:
= 2.15 – 3.2x
Which of the following statements concerning this relationship is true?
a. For every one-unit increase in X, Y increases 3.2 units.
b. For every one-unit increase in Y, X decreases 3.2 units.
c. For every one-unit increase in X, Y decreases 3.2 units. (I CHOSE C)
d. For every one-unit increase in Y, X increases 3.2 units.
11. Horace Mann, principal of Jones Public School, has decided to construct a time series model to obtain a 2- and a 3-period moving average to forecast student enrollments for next term. Which statement is true concerning the accuracy of each forecast that Horace will obtain?
a. The 2-period forecast will be more accurate than the 3-period forecast.
b. The 3-period forecast will be more accurate than the 2-period forecast.
c. Both forecasts will be equally accurate.
d. Either forecast could be more accurate than the other. (I CHOSE D)
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