Maurice Tutor

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Category > Management Posted 07 Jan 2018 My Price 7.00

confidence interval for the population

8.19      Find the 95 percent confidence interval for the population variance from these samples.

a.   n = 15 commuters, s = 10 miles driven

b.   n = 18 students, s = 12 study hours

8.20      The weights of 20 oranges (in ounces) are shown below. Construct a 95 percent confidence inter- val for the population standard deviation. Note: Scale was only accurate to the nearest 1/4 ounce. (Data are from a project by statistics student Julie Gillman.) Oranges

 

 

 

 

                 FIGURE 8.29

MINITAB’s Confidence

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Answers

Maurice Tutor
(5)
Status NEW Posted 07 Jan 2018 08:01 PM My Price 7.00

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