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Question: A population consists of two strata, H and L, of sizes 100,000 and 500,000 and standard deviations 20 and 12, respectively. A stratified sample of size 100 is to be taken.
a. Find the optimal allocation for estimating the population mean.
b. Find the optimal allocation for estimating the difference of the means of the strata, μH - μL.
Give a possible description why serum cholesterol values for older males are lower than for younger males and reverse is true for females.
Translate the following statements into symbolic form using capital letters to represent affirmative English statements.- If corporate welfare continues, then taxpayer interests will be ignored and billions of tax dollars will go to giant corporati..
a spice rack contains three jars of herbs and four jars of spices. if the jars are placed randomly on the rack what is
two methods of memorizing difficult material are being tested to determine if one method produces better retention.
Using traditional methods, it takes 108 hours to receive a basic driving license. A new license training method using Computer Aided Instruction
What might lead minority students to take more or fewer high school math courses? Would these same factors influence success in college?
Calculate the profit earned/loss incurred on; a high performance tire that exceeds 40,000 miles, a high performance tire that does not exceed 40,000 miles.
Please use words to describe the solution, not just symbols. (basically, explain what is going on in addition to an answer) Use a math symbol editor where appropriate.
Construct the 99% confidence intervals for the population variance and the population standard deviation.
Consider forming a random rectangle in two ways. Let U1, U2, and U3 be independent random variables uniform on [0, 1]. One rectangle has sides U1 and U2.
on nov 1 2012 there was a florida poll. the poll was of 549 likely florida voters. 47 said they were going to vote for
What are the differences between proximal goals and long-term goals of evaluation research? Provide one example for each that is related to human services research.
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