Question

I did an "eggsperiment" with a fellow instructor one day. His calculus class was studying volumes of solids by rotating curves around the x axis. We modeled the volume of an egg as an ellipsoid, and measured eggs with calipers, using the calculus formula. Each egg was also measured for volume using a water displacement method. We wanted to know whether the two methods agreed. The data were

Egg	Calculus	Water Displacement
1	60.90	60
2	50.77	58.5
3	49.99	45
4	79.16	75
5	75.91	65
6	54.7	55
7	64.9	62.5
8	62.14	60
9	57.62	60

The value of the test statistic for the test is

	c. z = 0.975.
	a. t = 0.975.
	b. t = 0.387.

Answer 1

option A: t =0.975 is correct