A book publisher knows that it takes an average of nine business days from when the material for the book is finalized until the first edition is printed and ready to sell. Suppose the exact amount of time has a standard deviation of four days.
A) Suppose the publisher examines the printing time for a sample of 36 books. What is the probability that the sample mean time is shorter than eight days?
B) Suppose the publisher examines the printing time for a sample of 36 books. What is the probability that the sample mean time is between 7 and 10 days?
C) Suppose the publisher signs a contract for the printer to print 100 books. If the average printing time for the 100 books is longer than 9.3 days, the printer must pay a penalty. What is the probability the penalty clause will be activated?
D) Suppose the publisher signs a contract for the printer to print 10 books. If the average printing time for the 10 books is longer than 9.7 days, the printer must pay a penalty. What is the probability the penalty clause will be activated?
Correct Answer:
Verified
b. 0.9318
...
View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Q118: A fast-food restaurant uses an average of
Q119: According to the recent report, scientists in
Q120: Suppose residents in a well-to-do neighborhood pay
Q121: A tutoring company claims that 75% of
Q122: In early 2012, the U.S. Congress approval
Q124: In a large metropolitan area, the top
Q125: A bottled water plant uses a production
Q126: A school is required by the government
Q127: In a recent investigation, the National Highway
Q128: A large accounting firm gives out 1,000
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents