Which of the following causes sampling error?
a. Taking a random sample from a population instead of studying the entire population.
b. Making a mistake in the process of collecting the data.
c. Nonresponse bias.
d. All of these choices are true.
Question 2
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a videocassette recorder over the past 12 months are satisfied with their products. If there are 4 different brands of videocassette recorders made by the company, the best sampling strategy would be to use a:
a. simple random sample.
b. stratified random sample.
c. cluster sample.
d. self-selected sample.
Random, regular, and clumped distributions.
Sample prescriptions of drugs for oral fungal infections.
Population and Settlement
Population age 65 and over and age 85 and over, selected years 1900-2008 and projected 2010-2050.
Population distribution patterns
A very small sampling of organisms in an arctic food web on land.