A broth used to manufacture a pharmaceutical product has its sugar content, in mg/mL, measured several times on each of three successive days.

Day 1

5.0

4.8

5.1

5.1

4.8

5.1

4.8

4.8

5.0

5.2

4.9

4.9

5.0

Day 2

5.8

4.7

4.7

4.9

5.1

4.9

5.4

5.3

5.3

4.8

5.7

5.1

5.7

a) Using α = 0.05, can you conclude that the variability of the process is greater on the second day than on the first day?

b) Using the f-distribution, see if you can attempt a p-value for this problem