Question: A shop manual gives 6.5 hours as the average time required to perform a 30,000 mile major maintenance service on a Porsche 911. Last month a mechanic performed 11 such services, and his required times were as follows.

6.3 6.6 6.7 5.9 6.3 6.0 6.5 6.1 6.2 6.4 6.3

Determine whether the data appear to be approximately normally distributed by

1. comparing data characteristics to theoretical properties.
2. constructing a normal probability plot.

Price: $2.99

Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document