Bmal 590 Week 5 Questions And Answers
All registered voters in the state of Michigan Which of the following represents a
population, as opposed to a sample?
the 500 adult pine trees selected at random selected at random from this forest. A study in
underway to determine the average height of ...
All registered voters in the state of Michigan Which of the following represents a
population, as opposed to a sample?
the 500 adult pine trees selected at random selected at random from this forest. A study in
underway to determine the average height of all 32000 adult pines trees in a certain national
forest. The heights of 500 randomly selected adult pine tree are measured and analyzed. The
sample this study is
the proportion of times a conclusion about a population will be wrong in the long run The
significance level of statistical inference measures
the proportion of times an estimation procedure will be correct in the long run The
confidence level of a statistical inference measures
A survey A marketing research firm selects a random sample of adults and asks them a list
of questions regarding their beverage preferences. What type of data collection is involved here ?
, Bmal 590 Week 5 Questions And Answers
All of these choices are true Which of the following statements is true regarding the
design of a good survey ?
Direct observation Which method of data collection is involved when a researcher counts
and records the number of students wearing backpacks on campus on a given day ?
Sampling error The difference between a sample mean and the population mean is called
Stratified random sample The manager of the customer service division of a major
consumer electronics company is interested in determine whether the customers who have
purchased a videocassette recorder over the past 12 months are satisfied with their products. If
there are four different brands of videocassette recorders made by the company, the best
sampling strategy would be to use a
Simple random sample When every possible sample with the same number of
observations is equally likely to be chosen, the result is called a
Self selected Samples Which of the following types of samples is almost always biased?
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