A Running Coach Wanted to See Whether Runners Ran Faster

Multiple Choice

A running coach wanted to see whether runners ran faster after eating spaghetti the night before a race. Twenty-four random runners were chosen for this study.They ran a 5-kilometre race after having a
Normal dinner the night before, and then a week later, re-ran the same race after having a spaghetti dinner
The night before.Their results (in seconds) are in the table below.At , what is the test value for
This test?

A) -3.41
B) -1.00
C) -0.26
D) -4.90