An automobile company partnered with its competition to compile a large sample of email contacts from which they sent questionnaires to a random sample that includes car owners who aren't necessarily their customers. This method was used to ask 20 car owners the age of their primary vehicle in years. The data from their responses are provided below. Use Excel and the QUARTILE.INC function to construct a box and whisker plot for the dataset. What is the value of the maximum for this dataset?

Age of car in years

4

1

5

8

4

6

6

3

3