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Category > Statistics Posted 18 Jun 2017 My Price 7.00

Refer to the data of Exercise 3.109 on the current annual incomes

Refer to the data of Exercise 3.109 on the current annual incomes (in thousands of dollars) of the 10 members of the class of 2000 of the Metro Business College who were voted most likely to succeed.

a. Determine the values of the three quartiles and the interquartile range. Where does the value of 74 fall in relation to these quartiles?

b. Calculate the (approximate) value of the 70th percentile. Give a brief interpretation of this percentile. c. Find the percentile rank of 97. Give a brief interpretation of this percentile rank.

Exercise 3.109:

Each year the faculty at Metro Business College chooses 10 members from the current graduating class that they feel are most likely to succeed. The data below give the current annual incomes (in thousands of dollars) of the 10 members of the class of 2000 who were voted most likely to succeed.

a. Calculate the mean and median.

b. Does this data set contain any outlier(s)? If yes, drop the outlier(s) and recalculate the mean and median. Which of these measures changes by a greater amount when you drop the outlier(s)?

c. Is the mean or the median a better summary measure for these data? Explain.

Answers

Alpha Geek
(8)
Status NEW Posted 18 Jun 2017 08:06 AM My Price 7.00

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file 1497774304-Answer.docx preview (88 words )
A-----------nsw-----------er ----------- X=----------- 56----------- 59----------- 60----------- 68----------- 74----------- 78----------- 84----------- 97----------- 10-----------7 3-----------82 -----------min-----------imu-----------m v-----------alu-----------e =-----------56 -----------max-----------imu-----------m v-----------alu-----------e =-----------382----------- me-----------dia-----------n Q-----------2 -----------= (-----------(n/-----------2)t-----------h t-----------erm-----------+(n-----------/2+-----------1)t-----------h t-----------erm-----------)/2----------- =(-----------74+-----------78)-----------/2 -----------=76----------- Q1-----------= (-----------n/2-----------+1)-----------/2t-----------h t-----------erm----------- =3-----------rd -----------Ter-----------m =-----------60 -----------Q3=-----------((3-----------n/2------------1)-----------/2)-----------th -----------ter-----------m =-----------7th----------- te-----------rm -----------=97----------- -----------a) -----------Int-----------er------------Qua-----------rti-----------le -----------ran-----------ge -----------Q3------------Q1=----------- 21----------- 74----------- fa-----------lls----------- at----------- th-----------e 3-----------rd -----------pal-----------ce -----------int-----------o I-----------nte-----------r-Q-----------uar-----------til-----------e r-----------ang-----------e ----------- b)----------- 70-----------th -----------per-----------cen-----------til-----------e o-----------f t-----------his----------- da-----------tas-----------et -----------is -----------= 7-----------0% -----------of -----------(nu-----------mbe-----------r o-----------f d-----------ata-----------set-----------) =-----------7th----------- te-----------rm -----------=56----------- Pe-----------rce-----------nti-----------le -----------Ran-----------k o-----------f 9-----------7 =----------- L -----------+ (----------- 0.-----------5 x----------- S -----------) /----------- N -----------= (-----------7+(-----------0.5-----------*1)-----------)/1-----------0
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