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Solution Manual Essentials of Statistics for Business and Economics 6th Edition by David R. Anderson SLC1077
48
Chapter 2
Descriptive Statistics: Tabular and Graphical Presentations
The Golf Digest 50 lists the 50 professional golfers with the highest total annual income. Total income is the sum of both on-course and off-course earnings. Tiger Woods ranked first with a total annual income of $122 million. owe!er" almost $100 million of this to-tal to-tal was from from off-co off-cours ursee acti!i acti!itie tiess such such as produc productt endors endorseme ements nts and person personal al appearances. The 10 professional golfers with the highest off-course income are shown in the following table #olf %igest website , &ebruar' 200(). Off-Course
Name
Income ($1000s)
Tiger Woods
**"(00
+hil ,ickelson
-0"200
rnold +almer
2*"500
/ia' ingh
rnie ls
25"250
2-"500
reg 3orman
2-"000
4ack 3icklaus
20"50
ergio arcia
1-"500
,ichelle Wie
12"500
4im &ur'k
11"000
The off-course income of all 50 professional golfers in the Golf Digest 50 can be found on the website that accompanies the te6t. The income data are in $1000s. 7se classes of 08***" 50008****" 10"00081"***" and so on to answer the following 9uestions. :nclude an openended class of 50"000 or more as the largest income class.
WEB file OffCourse
WEB file Computer
;onstruct ;onstruct a fre9uenc' fre9uenc' distri distributio bution n and percent percent fre9uenc' fre9uenc' distr distributi ibution on of the annual annual offoffcourse income of the 50 professional golfers.
;onstr ;onstruct uct a hist histogr ogram am for these these data. data.
;omment ;omment on the shape shape of of the distribut distribution ion of of off-cou off-course rse income. income.
What is is the most most fre9uent fre9uent off-cour off-course se income income class class for the 50 50 professiona professionall golfers< golfers< 7s-ing 7s-ing 'our tabular and graphical summaries" what additional obser!ations can 'ou make about the off-course income of these 50 professional golfers<
Technology Report pro!ided The Nielsen Home Technology pro!ided information information about home technolog' and its usage. The following data are the hours of personal computer usage during one week for a sample of 50 persons.
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ummari?e the data b' constructing the following@
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fre9uenc' distribution #use a class width of three hours)
relati!e fre9uenc' distribution
histogram
n ogi!e
;omment on what the data indicate about personal computer usage at home.
Exploratory Data Analysis !"e #teman-%eaf Display The techni9ues of exploratory ata analysis consist of simple arithmetic and eas'-to-draw graphs that can be used to summari?e data 9uickl'. Ane techni9ueBreferred to as a stem-an-leaf isplay Bcan be used to show both the rank order and shape of a data set simultaneousl'.
