Math Solutions

[Steps Shown] Stichler, Richey, and Mandel compared two methods of measuring tread wear in their paper "Measurement of Tread wear of Commercial Tires".

Question: Stichler, Richey, and Mandel compared two methods of measuring tread wear in their paper "Measurement of Tread wear of Commercial Tires". Eleven tires were each measured for tread wear by two methods, one based on weight and the other on groove wear. The following are the data, in thousands of miles.

Weight Method Groove Method Weight Method Groove Method
30.5 28.7 24.5 16.1
30.9 25.9 20.9 19.9
31.9 23.3 18.9 15.2
30.4 23.1 13.7 11.5
27.3 23.7 11.4 11.2
20.4 20.9

At the 5% significance level, do the data provide sufficient evidence to conclude that, on average, the two measurement methods give different results?

Price: $2.99
Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document


∴ Other downloads you may be interested in ∴

log in to your account

Forgot password?
Don't have a membership account?
REGISTER

reset password

Back to
log in

sign up

Back to
log in