The average cleanup time for a crew of a mediumsize firm is 84.0 hours and the standard

Question:

The average cleanup time for a crew of a mediumsize firm is 84.0 hours and the standard deviation is 6.8 hours. Assume the empirical rule is appropriate. a. What proportion of the time will it take the cleanup crew 97.6 hours or more to clean the plant?
b. Within what interval will the total cleanup time fall 95% of the time?
Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question

Elementary Statistics

ISBN: 9780538733502

11th Edition

Authors: Robert R. Johnson, Patricia J. Kuby

Question Posted: