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Exam 13: Glossary

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Question 31

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What are two advantages of using simulation techniques instead of studying actual situations?

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It can be less costly, less ti...

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Question 32

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What type of question consists of giving the subject a list of possible responses from which to choose?

A) close-ended
B) open-ended
C) faulty
D) unbiased

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Question 33

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Give the type of sample obtained by numbering each element in the population and then selecting every third or fifth or tenth, etc., number from the population to be included in the sample.

A flip of a fair coin is used to simulate the gender of a series of simulated students. $\begin{array}{|c|c|}\hline \text { Flip } & \text { Gender } \\\hline \mathrm{H} & \text { Female } \\\hline \mathrm{T} & \text { Male } \\\hline\end{array}$ Given the following four flips, how many female students were there? H T T T

The 99 census divisions in Quebec were numbered alphabetically, and a researcher decided to randomly select a number and then survey every sixth division on unemployment rates. What type of sampling technique is the researcher employing?

The following numbers were randomly generated. Starting with the number 97 , select every other number down the columns, continuing at the top of the next column, until seven numbers have been chosen. If the odd numbers represent tails, and the even numbers represent heads, how many times does this simulated coin land on tails? $\begin{array}{lllllllll}68 & 96 & 37 & 69 & 97 & 19 & 50 & 29 & 66 \\74 & 8 & 58 & 5 & 13 & 30 & 69 & 65 & 50 \\36 & 47 & 22 & 15 & 19 & 44 & 9 & 11 & 16\end{array}$

A researcher is using a random number table to pick between two groups labelled X and Y. X is to be chosen with a probability of $5 / 7$ and Y with a probability of 2/7. The researcher assigns the digits {1, 2, 3, 4, 5} to X and the digits $\{ 6,7 \}$ to Y. The researcher uses this section of a random number table: $6820820919$ What are the first and second choices?

One major disadvantage of cluster sampling is that the elements in a cluster may not have the same variation in characteristics as elements selected individually from a population.

If all possible samples of a specific size have the same chance of being selected, what type of sampling technique is being used?

What term is given to a sample chosen at random from a population?

Samples are said to be ______________ when some type of systematic error has been made in the selection of the subjects. ________________________________________

A researcher is using a random number table to pick between two groups labelled X and Y. Each group is to be chosen with the same probability (0.50) . The researcher assigns the odd digits {1, 3, 5, 7, 9} to X And the even digits {2, 4, 6, 8, 0} to Y. The researcher uses this section of a random number table: $5071195372$ What is the first choice?

Sampling differs from simulation in that

"What are your three favourite flavours of ice cream?" would be an example of which type of question?

Which of the following examples of a survey question is not meant to bias the participant's response?

A(n) __________ is defined as all subjects (human or otherwise) that are being studied. ________________________________________

A new product is being introduced, and a nationwide survey to determine the public's opinion of the product is to be conducted. Four provinces are picked at random, divided into eight areas, and then A sample of these areas is divided into rural and urban markets. A number of people in each of these Markets are asked their opinion of the new product. What type of sampling technique is being employed?

The survey question, "Since everybody likes baseball, you support the construction of the new ball field, don't you?" is a poor survey question because it is:

An example of a good technique for getting a random sample of the population would be to ask a question by radio and have the listeners phone in with an answer.

If a third of a population is female, then approximately a third of the representative sample should be female.