Tom has been gathering data concerning the cost of a spa treatment, y', during the before Valentine's Day. The only independent variable that he has considered is the number of minutes, "x," in the treatment. Suppose Tom collects data on the relationship between the number of minutes in a treatment and the resulting cost of we the treatment. Tom finds that the correlation between cost and number of minutes is strong and positive. Therefore, he has performed a linear regression analysis on his data. His results are that the constant "a" is 35, and the coefficient "b1" for the independent variable is 1.3. Which of the following is the correct linear regression equation that would allow Tom to predict the cost of a spa treatment given the number of minutes? Oy' = 78x + 35 %3D Oy' = 1.3x + 35 Oy = 78x - 1.3 %3D Oy= -1.3x 35

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Tom has been gathering data concerning the cost of a spa treatment, y', during the
before Valentine's Day. The only independent variable that he has considered
is the number of minutes, "x," in the treatment. Suppose Tom collects data on the
relationship between the number of minutes in a treatment and the resulting cost of
we
the treatment. Tom finds that the correlation between cost and number of minutes is
strong and positive. Therefore, he has performed a linear regression analysis on his
data. His results are that the constant "a" is 35, and the coefficient "b1" for the
independent variable is 1.3. Which of the following is the correct linear regression
equation that would allow Tom to predict the cost of a spa treatment given the
number of minutes?
Oy = 78x + 35
Oy' = 1.3x + 35
%3D
Oy = 78x - 1.3
%3D
OY = -1.3x - 35
Transcribed Image Text:Tom has been gathering data concerning the cost of a spa treatment, y', during the before Valentine's Day. The only independent variable that he has considered is the number of minutes, "x," in the treatment. Suppose Tom collects data on the relationship between the number of minutes in a treatment and the resulting cost of we the treatment. Tom finds that the correlation between cost and number of minutes is strong and positive. Therefore, he has performed a linear regression analysis on his data. His results are that the constant "a" is 35, and the coefficient "b1" for the independent variable is 1.3. Which of the following is the correct linear regression equation that would allow Tom to predict the cost of a spa treatment given the number of minutes? Oy = 78x + 35 Oy' = 1.3x + 35 %3D Oy = 78x - 1.3 %3D OY = -1.3x - 35
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