Question 23 (1 point) Zagat restaurant guides publish ratings of restaurants for

Question

Question 23 (1 point)

Zagat restaurant guides publish ratings of restaurants for many large cities around the world. The restaurants are rated on a 0 to 30 point scale based on quality of food, decor, service, and cost. Suppose the regression equation that predicts the cost of dinner using the rating of the quality of food for the restaurants in a particular city is (cost of dinner) = 3.706*(food quality) + 2.264. Interpret the slope.

Question 23 options:

1)

2)

3)

4)

5)

1)

We are not given the dataset, so we cannot make an interpretation.

2)

When cost of dinner increases by 1 dollar, food quality increases by 3.706 points.

3)

When cost of dinner increases by 1 dollar, food quality increases by 2.264 points.

4)

When food quality increases by 1 point, cost of dinner increases by 2.264 dollars.

5)

When food quality increases by 1 point, cost of dinner increases by 3.706 dollars.

Explanation / Answer

Here, we are given the slope as 3.706, which means that for a unit increase in the food quality, there would be an increase in cost of dinner by 3.706 units.

When food quality increases by 1 point, cost of dinner increases by 3.706 dollars.

Therefore 5) is the correct answer here.

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