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I. What level of data?
Question: If statisticians were planning a study on the levels of measurement, how would they identify numbers associated with the example below?
(a)scores on a teacher-prepared math test __________________________
(b)scores on a commercially prepared standardized reading test_____________
(c) salaries of coal miners_____________________________________
(d) all numeric vehicle license plates ________________________________
(e)class ranks for graduating high school seniors ______________________
II. Discrete or Continuous Data?
Question: If numbers were associated with each of these examples below, what kind of numbers would they be?
(a)heights in feet of seventh-grade boys _______________________________
(b)depths of the Atlantic Ocean _______________________________________
(c)people at a rock concert ___________________________________________
(d)tax returns for auditing ____________________________________________
(e)mass produced cigarettes ___________________________________________
III.Inferential or Descriptive Statistics?
Read the scenarios, and identify which kind of statistics is referenced.
(a)a pharmaceutical company testing a new drug to treat insomnia to see whether it is superior to its predecessor
______________________________________
(b)a television anchor’s report on the possible number of whales in the Pacific Ocean
________________________________________
(c)a television poll that reveals political preferences of residents of Alaska
_________________________________________
(d)a laboratory study regarding which fertilizer is best among five for growing mushrooms
__________________________________________
(e)a newspaper story about the number of condominiums to be constructed in a planned high rise building
__________________________________________
IV. Identify which one of the examples in Part III above best represents hypothesis testing. Explain why you selected that particular example.
V.Which type of Sampling?
Identify the type and explain why you selected that choice rather than the other options (2 pts choice/3 points justification).
(a)Consumer Research Company sends its employees to randomly selected gasoline stations throughout the nation to report on prices per gallon.
(b) Political Analysis, Inc. divides the USA into a number of different regions. Then, the research personnel randomly select 100 to 1000 adults from each of those regions to investigate the peoples’ choice for president in 2008. Size of the region dictates whether a larger number or a smaller number of people will be sampled.

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