For problem 18, identify each variable and the nature of the associated data (qu
ID: 3350395 • Letter: F
Question
For problem 18, identify each variable and the nature of the associated data (quantitative, qualitative categorical, or qualitative ordinal) 18. Gallup Poll. The Gallup Poll conducted a representa tive telephone survey of 1180 American voters. Among the reported results were the voter's region (Northeast, South, etc.), age, political party affiliation, whether the respondent owned any shares of stock, and their attitude (on a scale of1 to 5) toward unions. For problem 24, Gallup is seeking to assess the beliefs of all U.S. adults about global warming Identify the population, sample, all potential variables of interest, and a “plausible" inference based upon the data in the problem 24. Global warming. The Gallup Poll interviewed 1012 ran- domly selected U.S. adults aged 18 and older, March 6-9, 2008. Gallup reports that when asked when (if ever) the effects of global warming will begin to happen, 61% of respondents said the effects had already begun. Only 11% thought that they would never happen. Fully Interpret the histogram in problem 26 26. Gas prices. The website MSN auto (www.autos.msn com) provides prices of gasoline at stations all around the United States. This histogram shows the price of regular gas (in S/gallon) for 57 stations in the Los Angeles area dur- ing the week before Christmas 2007. Describe the shape of this distribution (shape, center, spread, unusual features). 20 10 SC 3.2 3.4 3.6 3.8 Price in Dollars/Gallon SCExplanation / Answer
Solution:-
24)
a) Population - U.S adults aged 18 or older.
b) Sample - 1012 randomly selceted U.S adults aged 18 or older.
c) Variable of interest - WHen the effect of global warming will begin to happen.
d) Inference - More than 50% of the respondants believe that effects had already begun.
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