H4F11sols - They have access to a list of to use that to select their sample from They cho nd to their question 68 of the 150 are in favor o

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Homework 4 Question "The Gamecock" is interested to increase with gas prices (instead of al state from an earlier article and decide to random to contact. Of those 150 respon The observed percent that were "in favo Answer 17%, and 17%, and 37.5%, a 37.5%, a 45.3%, a 45.3%, a The work: 68/150 0.453 (150 is the sa For more: See example 1 on page 36. Question Assuming it is a simple random approximately: Answer The work: 1/sqrt(150) 1 / 12.2474 0 For more: See example 4 on page 42. Question Complete the following two se If the 250 who chose not to respond to th drove more and weren't at home to answ introduce _________ into the estimate. The fact that the sample was chosen at ra Answer Bias, B Bias, V Variabi Variabi For more: See page 37 about random sam 61 also talks about non-response and bia d in what percentage of adult South Carolians fav lways being fixed).
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Unformatted text preview: They have access to a list of to use that to select their sample from. They cho nd to their question. 68 of the 150 are in favor o or" is: d is a parameter d is a statistic and is a parameter and is a statistic and is a parameter and is a statistic ample size, see page 9) m sample, the margin of error corresponding to 1.49% 5.00% 8.16% 12.1% 0.0816 sentences: the survey differed from the 150 who did on this er. .. and also were more likely to want the tax to random would introduce _________ into the esti Bias ariability ility, Bias ility, Variability mples and pages 40-41 about bias. Down the ro as. vor allowing the gas tax f registered voters in the oose 400 names at of the increase. 95% confidence is s issue (perhaps they to stay low), this would timate. oad, the bottom of page...
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This note was uploaded on 02/22/2012 for the course STAT 110 taught by Professor Johnson during the Fall '07 term at South Carolina.

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