Questions from Applied Statistics

Q: Samples of a cast aluminum part are classified on the basis of

Samples of a cast aluminum part are classified on the basis of surface finish (in microinches) and edge finish. The results of 100 parts are summarized as follows: Let A denote the event that a sampl...

Q: A lot contains 15 castings from a local supplier and 25 castings

A lot contains 15 castings from a local supplier and 25 castings from a supplier in the next state. Two castings are selected randomly, without replacement, from the lot of 40. Let A be the event that...

Q: If A, B, and C are mutually exclusive events,

If A, B, and C are mutually exclusive events, is it possible for P(A) = 0.3, P(B) = 0.4, and P(C) = 0.5? Why or why not?

Q: Incoming calls to a customer service center are classified as complaints (

Incoming calls to a customer service center are classified as complaints (75% of calls) or requests for information (25% of calls). Of the complaints, 40% deal with computer equipment that does not re...

Q: In the manufacturing of a chemical adhesive, 3% of all

In the manufacturing of a chemical adhesive, 3% of all batches have raw materials from two different lots. This occurs when holding tanks are replenished and the remaining portion of a lot is insuffic...

Q: A robotic insertion tool contains 10 primary components. The probability that

A robotic insertion tool contains 10 primary components. The probability that any component fails during the warranty period is 0.01. Assume that the components fail independently and that the tool fa...

Q: A machine tool is idle 15% of the time. You

A machine tool is idle 15% of the time. You request immediate use of the tool on five different occasions during the year. Assume that your requests represent independent events. a. What is the probab...

Q: A company that tracks the use of its Web site determined that

A company that tracks the use of its Web site determined that the more pages a visitor views, the more likely the visitor is to request more information (RMI). Use the following table to answer the qu...

Q: An article in Genome Research [“An Assessment of Gene Prediction Accuracy

An article in Genome Research [“An Assessment of Gene Prediction Accuracy in Large DNA Sequences” (2000, Vol. 10, pp. 1631–1642)] considered the a...

Q: A batch contains 36 bacteria cells. Assume that 12 of the

A batch contains 36 bacteria cells. Assume that 12 of the cells are not capable of cellular replication. Of the cells, 6 are selected at random, without replacement, to be checked for replication. a....