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A population consists of N = 10 primary units, each of which consists of Mi = 6 secondary units. A two-stage sampling design selects 2 primary units by simple random sampling (without replacement) and 3 secondary units from each selected primary unit, also by simple random sampling. The observed values of the variable of interest are 7, 5, 3 from the first primary unit selected and 4, 2, 3 from the second primary unit selected.
(a) Estimate the population mean μ per secondary unit.
(b) Estimate the variance of the estimator above.
Exploitron, Inc. conducts a random survey of 700 of their workers and finds that the average employee earns $31,782 per year, with a standard deviation of $622. The Census reports that the average American worker makes $30,059. The CEO of Exploitron ..
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What symbol is used to represent the mean of the sampling distribution of y-(ybar)? Explain and what symbol is used to represent one value from the sampling distribution of y-(ybar)? Explain
the average length of crocodiles in a swamp is 11.5 feet. if the lengths are normally distributed with a standard
The delivery times and the number of cases delivered were recorded in the delivery file: Develop a regression model to predict delivery time, based on the number of cases delivered.
find the p value for the given test statisticsa test stat is 1.64996194955793 for a two tailed testb test stat is
Assume there're three states of the economy: boom, moderate growth, and recession. The annual return on company A stock and company B stock in each state of the economy is given below
Illustrate for what value does probability XYZ will offer a competing product will ABC be indifferent among the alternatives.
a health researcher read that 200 lb man can burn 546 calorieshour playing tennis. 36 man sample withe a mean of 544.8
Conduct the hypothesis test and provide the test statistic, critical value, and P-value, and state the conclusion.
Use the method of least squares to model the relationship between x and y.
The number of defective components produced by a certain process in one day has a Poisson distribution with mean 20. Each defective component has probability 0.6 of being repairable.
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