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In a survey of a rare clumped species, the study area is divided into two strata, with N1 = 60 units in the first stratum and N2 = 50 units in the other. Initial simple random samples of sizes n1 = 3 and n2 = 2 are used. Whenever one or more of the animals are found, adjacent units are added as in text examples. In stratum 1, the first initial sample unit had one animal in it; no further animals were found in adjacent units. The second sample unit had no animals. The third sample unit had two animals; of the adjacent units added within that stratum, the only one with animals had three. That unit was adjacent to the stratum boundary, so adding its adjacent units resulted in crossing the stratum boundary and discovering three more units, with two, one, and one animals,
respectively. The two initial units selected in stratum 2 each had no animals. Estimate the number of animals in the study region using ˆμ0 and ˆμ1. Estimate the variance of the estimator.
Create a risk profile for EPC, how risky is EPC's best solution and suppose the CEO of EPC has reservations about your analysis of his key decision on new product introduction.
The important thing is having a reason for picking the model that you decide on. You should choose a model for overall characteristics like a high R^2 value. Y
Lead-time demand is 600 pounds. The standard deviation of lead time demand is 52 pounds. Supposing the lead time demand is normally distributed and that an acceptable risk of stocking out is 4%:
a company purchases shipments of machine components and uses this acceptance sampling plan. randomly select and test 20
Compute population µ and ð for the population. Find the z score for each population transform the original population into a new ppulation of N=5 with a mean µ=60 standard dev.ð=8.
audits. between quarterly audits a company checks its accounting procedures to detect problems before they become
there are 40 students in an elementary statistics class. on the basis of years of experience the instructor knows that
Determine the standard score for the value x=452 realative to its sample, where the sample mean is 500 and the standard deviation is 32.
The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, & 10.
at a large university it is known that 50 of the students live on campus. the director of student life is going to take
Statistical Quality in an Organization
we know that the average life of a light bulb is 10000 hours.there are 12 lightbulbs in a classroom. in order for a
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