Roberta grows pea plants, some in shade and some in sun. She picks 8 plants of each type at random and records the heights.

Shade plant heights (in.) 7 12 11 11 10 12 9 8
Sun plant heights (in.) 19 24 23 22 24 23 21 20

Express the difference in the means as a multiple of their ranges.
The difference in the means is
times the ranges.