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A design effect for the mean of a variable = 1.144 will the variance be under clustering be smaller or bigger than under a simple random sample.
Given the calculated design effect, will the standard errors under clustering be smaller or bigger under simple random sample design?
The total cholesterol level of US females 2 years old or older is normally distributed with a mean of 206 mg/dl and a standard deviation of 44.7
An experiment consists of selecting a card at random from a 52-card deck. Refer to this experiment and find the probability of the event.
A quality-control manager randomly selects 70 bottles of ketchup that were filled on S1 to assess the calibration of the filing machine. Determine the population study?
Show that, if N and X, X1, X2, . . . are independent random variables, N ∈ Ge(α), and X ∈ Be(β), then Y = X1 + X2 + · · · + XN has a geometric distribution, and determine the parameter.
STAT 750 Assignment. An experiment was conducted to determine the effect of pressure and temperature on the performance of a chemical substance
Three methods of training managers are to be tested for relative effectiveness. The management training institution proposes to test the effectiveness.
A professor tests whether the loudness of noise during an exam (low, medium, high) is independent of exam grades (pass, fail).
Find the mean and standard deviation for these data.- What is the variance for these data?- Find the median value for the dataset.
a 2012 gallup poll surveyed americans about their employment status and whether or not they have diabetes. the survey
A sample of 40 observations is selected from one somewhat normal population. The sample mean is 102 and the sample standard deviation is 5.
in a sample of 270 households in a certian citym 210 had high speed internet access. can you conclude that more than 70
Is there any evidence that the population proportion of stations in noncompliance with the law is different near Los Angeles and near San Francisco? Use a = 0.01.
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