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stat 200 hw 3

stat 200 hw 3 - 3.24 a proportion = 1/37.72 or.0315...

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3.24 a) proportion = 1/37.72 or .0315 percentage = 3.15% b) 36.85 % – 43.15 % or 371-434 people c) This interval shows that with about 95% confidence it can be stated that between 36.85 and 43.15% of people believe that buying items online is more of a threat to their personal privacy. d) Based on this interval you can conclude that fewer than half of adult Americans viewed internet shopping as more of a threat than buying things at a store because the interval shows that with nearly complete confidence you can say that between 36.85 and 41.15% of American adults would respond that way. 3.100 a) 1/sqrt(804) = 3.53 % margin of error. Confidence interval 43.47% - 50.53% or 349- 406 males. b) 1/sqrt(197) = 7.12 % margin of error. Confidence interval 65.88% - 80.12% or 129- 158 females. c) The females had a confidence interval that not only had a much larger range, it also showed that a significantly higher percent of women favored the use of race, religion, gender, etc. in determining admission to the university. Males and females clearly

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