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The management of a bank in the Caribbean was concerned about potential loss that might happen in event of a hurricane. Bank estimated that loss from one of these storms could be as much as $100 million including losses due to interrupted service and customer relations. One project bank is considering is installation of emergency power generator at its operations headquarters. Cost of emergency generator is $800,000, and if it is installed no losses from this kind of storm will be incurred. Though, if generator is not installed, there is a 10% chance that power outage will happen during next year. If there is the outage there is 5% probability that resulting losses will be very large or approximately $80 million in lost earnings. Alternatively, it is evaluated that there is a 95% probability of only slight losses of around $1 million. Using decision tree analysis, determined whether bank must install new power generator.
Describe the meaning of alternatives, criteria and states of nature. How are they utilized in decision analysis?
Describe the purpose of the link function of a GLM. What is the identity link? Explain why it is not often used with binomial and Poisson responses.
A particular magazine typically has 65% subscription renewals. A new advertising campaign is introduced to see if this can be increased. To monitor renewals, a sample of 300 subscribers is taken each month to see what percentage renew their subscr..
An auditor reviewed 25 oral surgery insurance claims from a particular surgical office, determining that the mean out-of-pocket patient billing above the reimbursed amount was $275.66 with a standard deviation of $78.11.
A survey was conducted to measure the height of men. In the survey, respondents were grouped by age. In the 20-29 age group, the heights were normally distributed, with a mean of 67.8 inches and a standard deviation of 4.0 inches. A study particip..
A consumer organization wants to know whether there is a difference in the price of a particular toy at three different types of stores.The price of the toy was checked in a sample of five discount stores, five variety stores, and five department ..
Compute sample mean. Assume that desirable value for this solution has been specified to be 65.0 grams per liter. Compute sample variance and sample standard deviation.
We assume that we have selected two independent random samples from populations having proportions p 1 and p 2 and that p-hat 1 = 800/1000 and p-hat 2 = 950/1000
Critically illustrate out the limitations of seasonal forecasting? Provide examples.
A company is conducting a survey of 235 people to measure the level of interest in a new product. Assume that the probability of a randomly selected person's being "very interested" is 0.88
A survey is planned to determine the mean annual family medical expenses of employees of a large company. The management of the company wishes to be 95% confident that the sample mean is correct to within plus-or-minus $50 of the population mean.
Give the Z score for person who scores (a) 340, (b) 310, and (c) 260. Give the raw scores for persons whose Z score on this test are (d) 2.4, (e) 1.5, (f) o, and (g) -4.5
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