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Demand for a popular athletic shoe is nearly constant at 800 pairs per week for a regional division of a national retailer. The cost per pair is $54. It costs $72 to place an order, and annual holding costs are charged at 22% of the cost per unit. The lead time is two weeks.
a. What is the EOQ?
b. What is the reorder point?
c. What is the cycle time?
d. What is the total annual cost?
Develop a probability for the number of students in the sample who watch soap operas.
Two mating parts have critical dimensions x1 and x2 as shown below. Assume that x1 and x2 are normally distributed with means 1 and mean2 and standard deviations s1 = 0.400 and s2 = 0.300.
An automobile insurance company estimates the following loss probabilities for the next year on a $25,000 sports car:
If the process mean and standard deviation remain constant, what proportion of the output from this process will be defective?
According to a hospital administrator, historical records over the past 10 years have shown that 20 percent of major surgery patients are dissatisfied with after-surgery care in the hospital. A scientific poll based on 400 hospital patients has ju..
A partial computer output from a regression analysis as follows. The regression equation is:
What is the value of the population mean? What is the best estimate of this value?
Plan the scatter diagram
Pilot sample of n = 50 tires illustrated sample standard deviation equal to 4,000 miles. Based on this information, required sample size is?
A population of 1000 students spends an average of $10.50 a day on dinner. The standard deviation of the expenditure is $3. A simple random sample of 64 students is taken.
Using the original data, test at the 5% significance level that the population standard deviation of studying times is greater than 4 hours.
The post-anesthesia care area (recovery room) at St. Luke's Hospital in Maumee, Ohio, was recently enlarged. The hope was that with the enlargement the mean number of patients per day would be more than 25. A random sample of 15 days revealed the ..
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