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RES 341 - Week 4 Quiz: Name: 1) A ______ survey is generally very expensive to administer. a. Telephone b. Internet c. Personal Interview d. All of

RES 341 - Week 4 Quiz

RES 341 - Week 4 Quiz: Name: 1) A ______ survey is generally very expensive to administer. a. Telephone b. Internet c. Personal Interview d. All of the above e. None of the above 2) ______is a portion, or part, of the population of interest. a. Summation b. Population Mean c. Sample d. Hypothesis e. Parameter 3) A telephone surveyor asked a question concerning how long it took someone to drive to work in minutes. What is the scale of measure that is being used for this question? a. Nominal b. Ordinal c. Interval d. Qualitative e. None of the Above 4) The best way to solve a business research problem is: a. Have only managers conduct research studies b. Start with a good operational definition c. Get expert opinion d. All of the above e. None of the above 5) Why is it best to use a hypothesis when doing a research study? a. It guides the direction of the study b. It identifies facts that are relevant and those that are not c. It suggests which form of research design is likely to be most appropriate d. All of the above e. None of the above 6) __________ refers to the extent to which a test measures what it is supposed to be testing. a. Measurability b. Practicality c. Reliability d. Validity e. Probability
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7) What is the probability of drawing a heart or a king in a regular deck of playing cards? ( Remember there are 52 cards ) Show work or explain answer. 8) What is the difference between probability sampling and simple random sampling? A. There is no difference. B. Probability sampling is a type of simple random sample. C. Simple random sampling is a type of probability sampling. D. In probability sampling each item has an identical chance of being chosen. 9) When students go to the Health Center these days complaining of pain they are asked to assess their pain using the emoticons above. One person’s assessment is an example of what kind of data? a. Categorical-Ordinal b. Categorical-Nominal c. Numerical-Discrete d. Numerical-Continuous 10) 25% of the people in my statistics class watch 8 or more hours of television a week. I can conclude from this that 25% of all students at the University watch 8 or more hours of television a week. Potential problems with this conclusion may be the result of a. using too small of a sample size. b. using a non-random sample. c. relying too heavily on a statistical generalization d. All of these 11) Find the mean of the data: 46 78 71 50 79 12) Find the median for the given sample data: 22 24 39 45 65 68 84 13) Find the standard deviation for the given data. Round your answer to one more decimal place than the original data. 196, 205, 215, 185, 229, 278, 165 A) 33.1 B) 30.2 C) 12.7 D) 36.2
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