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    Polytechnic State University Sanluis
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Category > Statistics Posted 02 May 2017 My Price 8.00

Presidential Travel

2.   Presidential Travel In a survey of 1004 individuals, 442 felt that President George W. Bush spent too much time away from Washington. Find a 95% confidence in- terval for the true population proportion.

Source: USA TODAY/CNN/Gallup Poll.

3.   Vacation Days A U.S. Travel Data Center survey reported that Americans stayed an average of 7.5 nights when they went on vacation. The sample size was 1500. Find a point estimate of the population mean. Find the 95% confidence interval of the true mean. Assume the population standard deviation was 0.8.

Source: USA TODAY.

http://test.transtutors.com/qimg/0b99aac9-486c-47bb-add6-acdf08b4b3d8.png 4.  Lengths of Children’s Animated Films The lengths (in minutes) of a random selection of popular

children’s animated films are listed below. Estimate the true mean length of all children’s animated films with 95% confidence.

93    83    76    92    77    81    78    100    78    76    75

 

 

 

Answers

Alpha Geek
(8)
Status NEW Posted 02 May 2017 07:05 PM My Price 8.00

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Attachments

file 1493752822-answer1.docx preview (170 words )
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