TABLE 14-6
One of the most common questions of prospective house buyers pertains to the cost of heating in dollars (Y) . To provide its customers with information on that matter, a large real estate firm used the following 4 variables to predict heating costs: the daily minimum outside temperature in degrees of Fahrenheit (X₁) the amount of insulation in inches (X₂) , the number of windows in the house (X₃) , and the age of the furnace in years (X₄) . Given below are the Excel outputs of two regression models.
Model 1
![TABLE 14-6 One of the most common questions of prospective house buyers pertains to the cost of heating in dollars (Y) . To provide its customers with information on that matter, a large real estate firm used the following 4 variables to predict heating costs: the daily minimum outside temperature in degrees of Fahrenheit (X₁) the amount of insulation in inches (X₂) , the number of windows in the house (X₃) , and the age of the furnace in years (X₄) . Given below are the Excel outputs of two regression models. Model 1 Model 2 -Referring to Table 14-6, what is the 90% confidence interval for the expected change in heating costs as a result of a 1 degree Fahrenheit change in the daily minimum outside temperature using Model 1? A) [-6.58, -3.65] B) [-6.24, -2.78] C) [-5.94, -3.08] D) [-2.37, 15.12]](https://d2lvgg3v3hfg70.cloudfront.net/TB1602/11ea2ff8_fd35_3921_b1b9_a336058cdbfe_TB1602_00_TB1602_00_TB1602_00_TB1602_00_TB1602_00_TB1602_00_TB1602_00.jpg)
Model 2
![TABLE 14-6 One of the most common questions of prospective house buyers pertains to the cost of heating in dollars (Y) . To provide its customers with information on that matter, a large real estate firm used the following 4 variables to predict heating costs: the daily minimum outside temperature in degrees of Fahrenheit (X₁) the amount of insulation in inches (X₂) , the number of windows in the house (X₃) , and the age of the furnace in years (X₄) . Given below are the Excel outputs of two regression models. Model 1 Model 2 -Referring to Table 14-6, what is the 90% confidence interval for the expected change in heating costs as a result of a 1 degree Fahrenheit change in the daily minimum outside temperature using Model 1? A) [-6.58, -3.65] B) [-6.24, -2.78] C) [-5.94, -3.08] D) [-2.37, 15.12]](https://d2lvgg3v3hfg70.cloudfront.net/TB1602/11ea2ff8_fd35_3922_b1b9_bf81b3afce29_TB1602_00_TB1602_00_TB1602_00_TB1602_00_TB1602_00_TB1602_00_TB1602_00.jpg)
-Referring to Table 14-6, what is the 90% confidence interval for the expected change in heating costs as a result of a 1 degree Fahrenheit change in the daily minimum outside temperature using Model 1?
Definitions:
Hydrogen Bond
Weak bond that arises between a slightly positive hydrogen atom of one molecule and a slightly negative atom of another molecule, or between parts of the same molecule.
Water Molecule
A molecule composed of two hydrogen atoms and one oxygen atom, essential for life.
Oxygen Atom
A chemical element with symbol O, essential for cellular respiration in living organisms.
High Heat
Refers to temperatures that are significantly above the average for a specific environment or process.
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