Solutions Statistics

There are four auto body shops in Bangor, Maine, and all claim to promptly serve customers. To check

Question: There are four auto body shops in Bangor, Maine, and all claim to promptly serve customers. To check if there is any difference in service, customers are randomly selected from each repair shop and their waiting times in days are recorded. The output from a statistical software package is:

Summary

Groups Count Sum Average Variance
Body Shop A 3 15.4 5.133333 .323333
Body Shop B 4 32 8 1.433333
Body Shop C 5 25.2 5.04 .748
Body Shop D 4 25.9 6.475 .595833

ANOVA

Source of Variation SS Df MS F p-value
Between Groups 23.37321 3 7.791069 9.612506 0.001632
Within Groups 9.726167 12 .810514
TOTAL 33.09938 15

Is there evidence to suggest a difference in the mean waiting times at the four body shops? Use the .05 significance level.

Price: $2.99
Solution: The solution consists of 1 page
Solution Format: 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