For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. Case studies showed that out of 10,409 convicts who escaped from certain...


For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.


Case studies showed that out of 10,409 convicts who escaped from certain prisons, only 8052 were recaptured.



(a) Letp represent the proportion of all escaped convicts who will eventually be recaptured. Find a point estimate forp. (Round your answer to four decimal places.)




(b) Find a 99% confidence interval forp. (Round your answers to three decimal places.)










lower limit=__
upper limit    =__

For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.

A random sample of medical files is used to estimate the proportionp of all people who have blood type B.



(a)If you have no preliminary estimate forp, how many medical files should you include in a random sample in order to be 85% sure that the point estimate p̂ will be within a distance of 0.04 fromp? (Round your answer up to the nearest whole number.)


 =__medical files




(b)Answer part (a) if you use the preliminary estimate that about 8 out of 90 people have blood type B.


=__ medical files





Jun 07, 2022
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