Quiz101 - d Sketch and clearly label the model using the.7...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Name: _______________________ Statistics Quiz #10: Chapter 18 Please Show All Work!!!!! 1. It is generally believed that electrical problems affect about 14% of new cars. An automobile mechanic conducts diagnostic tests on 128 new cars on the lot. a) Write in words what p is. b) Why is it acceptable to use a Normal model for this sampling distribution? c) What is the mean and standard deviation of the model?
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: d) Sketch and clearly label the model using the 68-95-99.7 Rule. e) What is the probability that in this group over 20% of the new cars will be found to have electrical problems? f) Would you think it were strange if 21% of the 128 cars tested had electrical problems? Why or why not? Use statistics in your answer. If you don’t use ideas from class, you won’t get credit!...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online