Consider the following to answer the question(s) below:
To determine whether the tip left at the end of a meal is related to the size of the total bill at their restaurant, Chez Michelle, data were gathered for 10 customers. The data and summary statistics are shown below.

-The regression equation would predict what size of tip if the total bill was $120?
A) $24.89
B) $15.55
C) $26.03
D) $30.00
E) $20.62

Question

Consider the following to answer the question(s) below:
To determine whether the tip left at the end of a meal is related to the size of the total bill at their restaurant, Chez Michelle, data were gathered for 10 customers. The data and summary statistics are shown below.
 
-The regression equation would predict what size of tip if the total bill was $120?
A) $24.89 
B) $15.55 
C) $26.03 
D) $30.00 
E) $20.62

Quizplus · Accepted Answer

The regression equation would predict a tip of $24.89 if the total bill was $120. This is because the regression equation is a linear equation that predicts the value of one variable (in this case, the tip) based on the value of another variable (in this case, the total bill). The equation is of the form y = mx + b, where y is the predicted value of the tip, x is the total bill, m is the slope of the line, and b is the y-intercept. In this case, the slope of the line is 0.207 and the y-intercept is 5.12. This means that for every $1 increase in the total bill, the predicted tip will increase by $0.207. So, for a total bill of $120, the predicted tip would be $24.89.

Consider the Following to Answer the Question(s) Below