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Category > Architecture and Design Posted 22 May 2017 My Price 7.00

Create a 90% confidence interval for the mean difference in cost. Be sure to justify your procedure.

Tuition 2006. How much more do public colleges and universities charge out-of-state students for tuition per semester? A random sample of 19 public colleges and universities listed at www.collegeboard.com yielded the following data. Tuition figures per semester are rounded to the nearest hundred dollars.

 

a) Create a 90% confidence interval for the mean difference in cost. Be sure to justify your procedure.

b) Interpret your interval in context.

c) A national magazine claims that public institutions charge state residents an average of $3500 less than out-of-staters for tuition each semester. What does your confidence interval indicate about this assertion?

 

Answers

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Status NEW Posted 22 May 2017 02:05 PM My Price 7.00

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file 1495464847-Answer.docx preview (190 words )
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