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1. Name the four basic sampling techniques.
2. Why are samples used in statistics?
3. What is the basic requirement for a sample?
4. Why should random numbers be used when you are selecting a random sample?
5. List three incorrect methods that are often used to obtain a sample.
6. What is the principle behind random numbers?
7. List the advantages and disadvantages of random sampling.
8. List the advantages and disadvantages of systematic sampling.
9. List the advantages and disadvantages of stratified sampling.
10. List the advantages and disadvantages of cluster sampling.
The researcher also gathers data on age and major to see if there is any connection between these varibales and frequency of sexual harassment.
You have 4 jars. In the largest jar you have three balls numbered 1 to 3. Then you have 3 colored jars. Jar 1 has a red ball and two orange balls.
The 90 percent confidence interval for the population mean is to (Round your answers to 3 decimal places.) Would it be reasonable to conclude that the population mean is 22 eggs? What about 24 eggs?
the moment generating function of a random variable x is given by mxt 1418et38e2t14e4t . determine the probability that
a normally distributed random variable x has the expectation x -15 and standard deviation 10. compute the table for
What is the component of the Canadian tax system that you are studying? Provide a one-page printout from one of your ECONLIT searches
A financial adviser is interested in predicting bond yield based on bond terms, i.e., one year, two years, etc. What is the dependent variable?
Formulate the appropriate null and alternative hypotheses to test the manufacturer's belief. Using the sample mean of 99.2, compute a 90% confidence interval. Show the computation, and interpret in one sentence the interval you compute.
The mean for a sample of n=16 scores has an expected value of 50. This sample was selected from a population with a mean of µ=50.
a 2012 gallup poll surveyed americans about their employment status and whether or not they have diabetes. the survey
Calculate the arithmetic mean age of the uninsured senior citizens to the nearest hundredth of a year. Identify the median age of the uninsured senior citizens
The average salary for graduates entering the actuarial field is $40,000. If the salaries are normally distributed with a standard deviation of $5,000, find the probability that An individual graduate will have a salary over $45,000.
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