Estimator of the population total
Suppose probability samples of size n=2 are selected from {1, 2, 3, 4} with probabilities d1=.4, d2=.4, d3=.1, and d4=.1. Demonstrate that tau_hat is still an unbiased estimator of the population total, but its variance is 81.25.
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(a) Determine the speed of the traveling wave. m/s (b) Determine the wavelength of the traveling wave. m (c) Determine the frequency of the traveling waves that make up the standing wave.
Looking to your neighborhood and businesses that you frequent, identify three different businesses and then state whether they would benefit most from the FIFO, LIFO.
You are asked to determine whether or not brunette students have a higher IQ score than other students. To do so, you administer an IQ test to a random sample of 300 brunette students. It is known that the national average IQ score of students is
Galen Wholesalers accepts from Picard Stores a $4,600, 4-month, 11% note dated May 31 in settlement of Picard's overdue account.What is the maturity date of the note?
To sell her plan to the city council, the architect wants to build a model to standard scale, one-sixteenth actual size. How fast should the water flow in the channel in the model? ________________ m/s
Convert the composition of the following alloy from atom percent to weight percent (a) 44.9 at% of silver, (b) 46.3 at% of gold, and (c) 8.8 at% of Cu.
You are considering four independent variables for inclusion in a regression model. You select a sample of 30 observations, with the follwings results:
During its first year of operations, Henley Company had credit sales of $3,303,126; $601,306 remained uncollected at year-end. The credit manager estimates that $38,860 of these receivables will become uncollectible.
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