Questions from Business Statistics

Q: Entrepreneur magazine ranks franchises using performance measures such as growth rate,

Entrepreneur magazine ranks franchises using performance measures such as growth rate, number of locations, startup costs, and financial stability. The number of locations for 20 U.S. franchises follo...

Q: The U.S. Coast Guard (USCG) provides a

The U.S. Coast Guard (USCG) provides a wide variety of information on boating accidents including the wind condition at the time of the accident. The following table shows the results obtained for 440...

Q: Mahoney Custom Home Builders, Inc. of Canyon Lake, Texas

Mahoney Custom Home Builders, Inc. of Canyon Lake, Texas, asked visitors to their website what is most important when choosing a home builder. Possible responses were quality, price, customer referral...

Q: The Car Repair Ratings website provides consumer reviews and ratings for garages

The Car Repair Ratings website provides consumer reviews and ratings for garages in the United States and Canada. The time customers wait for service to be completed is one of the categories rated. Th...

Q: The mean time between failures (MTBF) is a common metric

The mean time between failures (MTBF) is a common metric used to measure the performance of manufacturing systems. MTBF is the elapsed time between failures of a system during normal operations. The f...

Q: Do you dislike waiting in line? Supermarket chain Kroger has used

Do you dislike waiting in line? Supermarket chain Kroger has used computer simulation and information technology to reduce the average waiting time for customers at 2300 stores. Using a new system cal...

Q: The time (in minutes) between telephone calls at an insurance

The time (in minutes) between telephone calls at an insurance claims office has the following exponential probability distribution. a. What is the mean time between telephone calls? b. What is the pro...

Q: Jack Lawler, a financial analyst, wants to prepare an article

Jack Lawler, a financial analyst, wants to prepare an article on the Shadow Stock portfolio developed by the American Association of Individual Investors (AAII). A list of the 30 companies in the Shad...

Q: Data made available through the Petersen-Kaiser Health System Tracker in

Data made available through the Petersen-Kaiser Health System Tracker in May 2018 showed health expenditures were $10,348 per person in the United States. Use $10,348 as the population mean and suppos...

Q: Foot Locker uses sales per square foot as a measure of store

Foot Locker uses sales per square foot as a measure of store productivity. Sales are currently running at an annual rate of $406 per square foot. You have been asked by management to conduct a study o...