Cup A

MIN: 6

Q1: 6

Median: 8.25

Q3: 14

Max: 18

Std.dev: 8.25

Cup B

Min: 0

Q1: 1

Median: 2

Q3: 4.5

Max: 7

Std.dev: 3.5

Cup C

MIN: 9

Q1: 11.5

Median: 14.3

Q3: 21.75

Max: 38

Std.dev: 15

Cup D

MIN: 6

Q1: 6.5

Median: 8.5

Q3: 14.25

Max: 17.5

Std.dev: 7.75

Problem: Compare the efficiency of four Starbucks cups. You would study this sampling for eight times. Each time you pour heated water at 180 degrees F. Measure the difference in temperature twenty minutes later. The smaller the difference, the more efficient it is to retain heat. Which cup is more efficient and why?