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Question: The value of an inventory is to be estimated by sampling. The items are stratified by book value in the following way:
a. What should the relative sampling fraction in each stratum be for proportional and for optimal allocation? Ignore the finite population correction.
b. How do the variances under each type of allocation compare to each other and to the variance under simple random sampling?
The incidence rate of schizophrenia in this population is 6/100,000 persons each year. What percent of the 2,000 cases were newly diagnosed in 2003?
State the decision rule: (round 3 decimals)Reject H0 if t > Value of the test statistic (round 3 decimals)
Which of the preceding equations is the better fit to the time series if the MAD criterion is used? If the MSE criterion is used?
Use the following information to tfind the P-value
Remember to explain what details and experiences these ex-slaves gave in describing the institution of slavery and the practice of slavery.
Determine the annual break-even volume for the Retread Tire Company operation.
suppose that incoming calls per hour to a customer service center of a small credit union are uniformly distributed
What is the power of such a study if a two-sided test is to be used with α = .05? How many people would need to be studied to have 80% power under the assumptions in problem A?
What holds people back from pursuing their dreams? According to the video, what qualities do successful people have?
The mean throwing distance of a football for a Marco, a high school freshman quarterback, is 40 yards, with a standard deviation of two yards.
The famous YS Chang restaurant is open 24 hours a day. Waiters and busboys report for duty at 3am, 7am, 11am, 3pm, 7pm, or 11pm, and each works an 8 hour shift. The following table shows the minimum number of workers needed during the six periods ..
he Department of Motor Vehicles (DMV) can service customers at a rate of 20 per hour (or 1/3 per minute) when it comes to license renewals. The service time follows an exponential distribution.
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