Use the following scenario to answer the next 3 questions. Plastic bags used for packaging produce are

Question:

Use the following scenario to answer the next 3 questions. Plastic bags used for packaging produce are manufactured so that the breaking strength of the bag is normally distributed with a mean of 5 pounds per square inch and a standard deviation of 1.5 pounds per square inch. A sample of 25 bags is selected. So we have that the breaking strength of the bags is normal with µ = 5 lbs/in2 and σ = 1.5 lbs/in2. Also, n = 25.  1) What is the probability that the average breaking strength is between 5 and 5.5 pounds per square inch? 2) What is the probability that the average breaking strength is between 4.2 and 4.5 pounds per square inch? 3) What is the probability that the average breaking strength is less than 4.6 pounds per square inch?
Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question

Statistics For Business And Economics

ISBN: 9780132745659

8th Edition

Authors: Paul Newbold, William Carlson, Betty Thorne

Question Posted: