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Suppose you want to know how many books in a bookstore have only male authors, only female authors, or both male and female authors (the "bookstore" in this case might be a large retail store, the textbook section of your college bookstore, or all the books in the stacks of your library).
Because there are thousands of books in the store, you decide to study a sample of the books rather than examine every book there.
Describe a possible sampling procedure using a nonprobability sampling technique. Then describe how you might sample books using a probability sampling technique. Now speculate on the ways that the outcomes of your research might diff er using the two techniques.
A side effect of a certain anesthetic used in surgery is the hiccups, which occurs in about 10 percent of the cases. If three patients are scheduled for surgery today and are to be administered this anesthetic, compute the probability that:
When testing the hypothesis that the average amount spent on trips taken by the salesepartment are higher than those taken by the HR department, if the test statistic is 2.33 and the critical value is 1.96 then what is your conclusion concerningth..
a manufacturer of a certain type of large machine wishes to buy rivets from one of two manufacturers. it is important
The six differences (treatment minus control) had the mean = -0.326 and s = 0.181. Is there significant evidence of a difference between treatment and control?
the indiana department of transportation wishes to survey state residents to determine what proportion of the
Find the KKT point for the followin problem: maximize the area of a rectangle whose perimeter is fixed as 2d(>0) and whose width must be less than or equal to twice its length.
We are interested in determining whether or not the population in favor of Candidate A is significantly more than 75%. The test statistic is?
suppose that you are trying to estimate average iq and its standard deviation. you know that iqs are distributed
Let Y(sub-1) be the sales during month t (in thousands of dollars) for a photograph studio, and let P(sub-t) be the price charged for the portraits during month t. The data are included in the file provided below.Use regression to fit the followin..
Two binomial population proportions are suspected to be approximately 0.3, but they are unknown precisely. Using these as initial estimates, it is desired to conduct a study to determine the difference between these two population proportions.
Findings on the relationship between temperature anomalies over these period segments and CO2.
a fisherman decides to cast until he has caught a single fish. if the stream is so well stocked that on average a
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