Discuss the below:
I. What level of data?
Q: 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.