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A survey showed that 1200 of the 1600 adult respondents believe in global warming. Construct a 95% confidence interval estimate of the proportion of...

13. A survey showed that 1200 of the 1600 adult respondents believe in global warming. Construct a 95% confidence interval estimate of the proportion of adults believing in global warming. Show all work. Just the answer, without supporting work, will receive no credit. 

 

14. A city built a new parking garage in a business district. For a random sample of 100 days, daily fees collected averaged $2,000, with a standard deviation of $500. Construct a 90% confidence interval estimate of the mean daily income this parking garage generates. Show all work. Just the answer, without supporting work, will receive no credit.   

 

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13) Confidence interval =(0.7288... View the full answer

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13) 95% confidence interval =... View the full answer

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