Question

Determine the​ P-value for this hypothesis test. (Round to the nearest three decimal places as needed)

Carpeted     Uncarpeted
12.6                   7.6
11                   10.2
12.3                10.5
7.4                     7.4
7.2                  10.5
11.9                 10.6
6.8                       5
6.1                  11.6

Use this information to determine the appropriate conclusion.

Answer 1

Ans:

	Carpeted	Uncarpeted	d
1	12.6	7.6	5
2	11	10.2	0.8
3	12.3	10.5	1.8
4	7.4	7.4	0
5	7.2	10.5	-3.3
6	11.9	10.6	1.3
7	6.8	5	1.8
8	6.1	11.6	-5.5
		d-bar	0.2375
		sd	3.262312

Test statistic:

t=(0.2375-0)/(3.262/sqrt(8))

t=0.2059

p-value=tdist(0.2059,7,2)=0.843

There is no significant difference in means.