An engineer believes that there is a linear relationship between the thickness of an air filter in the amount of particulate matter that gets through the filter; that is, less pollution should get through thicker filters. The engineer test many filters of different thicknesses and fits a linear model. If a linear model is appropriate, what should be apparent in the residual plot?

There should be a negative, linear association in the residual plot.

Step-by-step explanation:

There should be no pattern in the residual plot ( I just took the quiz)

Step-by-step explanation:

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )