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Assume that Dunkin Donuts stores are distributed about the Boston area as a spatial Poisson process with rate 100 per square kilometer. What is the expected (Cartesian) distance between any store and the nearest other store? What is the expected distance from your current location to the nearest store? What is the probability of having at least one store within a radius of 100 meters from your current location?
Assume that Honey Dew Donut stores are also distributed about the Boston area as a spatial Poisson process with rate 21 per square kilometer. What is the expected distance from any point to the closest donut store (assuming these are the only two brands)? What is the probability that the closest store is a Dunkin Donuts?
If the population of all children in Europe has a mean age of µ years until they begin to read, one would test which of the following null and alternative
What was the relative risk of cocaine use for college students in 1980 compared with college students in 1993? Write your answer as a statement.
Use the table of Poisson probabilities given in the back of this book to assess the quality of these approximations.
Normal distribution with mean $60,000 and standard deviation $8000. Four electricians are selected at random from this population to be shipped to another region.
An aircraft has dual hydraulic systems. The aircraft switches to the standby system automatically if the frrst system fails.
in each of the following situations the sampling frame does not match the population resulting in undercoverage. give
Give the values of the variances for the three groups.- Find the pooled variance.- What is the value of the pooled standard deviation?
A widget inspector inspects 12 widgets and finds that exactly 3 are defective. Unfortunately, the widgets then get all mixed up and the inspector.
a) Explain why it would be hard to take a Simple Random Sample? b) Describe how to take a cluster sample of chocolate chip cookies.
Determine the single sampling plans that will accept lots that are 6% nonconforming 12% of the time. Use acceptance numbers of 1, 2, and 4. From a producer's point of view, which of these plans would you choose?
The manufacturing representative is willing to ignore all other possible losses. If the insurance company charges $2,500 for the policy
The makers of a soft drink want to identify the average age of its consumers. A sample of 16 consumers is taken. The average age in the sample was 22.5 years with a standard deviation of 5 years.
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