Wooldridge Source: Christopher Lemmon, a former MSU undergraduate, collected these data from a survey he took of MSU students in Fall 1994. Data loads lazily.
data('gpa1')
A data.frame with 141 observations on 29 variables:
age: in years
soph: =1 if sophomore
junior: =1 if junior
senior: =1 if senior
senior5: =1 if fifth year senior
male: =1 if male
campus: =1 if live on campus
business: =1 if business major
engineer: =1 if engineering major
colGPA: MSU GPA
hsGPA: high school GPA
ACT: 'achievement' score
job19: =1 if job <= 19 hours
job20: =1 if job >= 20 hours
drive: =1 if drive to campus
bike: =1 if bicycle to campus
walk: =1 if walk to campus
voluntr: =1 if do volunteer work
PC: =1 of pers computer at sch
greek: =1 if fraternity or sorority
car: =1 if own car
siblings: =1 if have siblings
bgfriend: =1 if boy- or girlfriend
clubs: =1 if belong to MSU club
skipped: avg lectures missed per week
alcohol: avg # days per week drink alc.
gradMI: =1 if Michigan high school
fathcoll: =1 if father college grad
mothcoll: =1 if mother college grad
https://www.cengage.com/cgi-wadsworth/course_products_wp.pl?fid=M20b&product_isbn_issn=9781111531041
This is a nice example of how students can obtain an original data set by focusing locally and carefully composing a survey.
Used in Text: pages 75, 77, 81, 129-130, 160, 232, 262, 295-296, 300-301
#> 'data.frame': 141 obs. of 29 variables: #> $ age : int 21 21 20 19 20 20 22 22 22 19 ... #> $ soph : int 0 0 0 1 0 0 0 0 0 1 ... #> $ junior : int 0 0 1 0 1 0 0 0 0 0 ... #> $ senior : int 1 1 0 0 0 1 0 0 0 0 ... #> $ senior5 : int 0 0 0 0 0 0 1 1 1 0 ... #> $ male : int 0 0 0 1 0 1 0 0 0 0 ... #> $ campus : int 0 0 0 1 0 1 0 0 0 0 ... #> $ business: int 1 1 1 1 1 1 1 0 0 1 ... #> $ engineer: int 0 0 0 0 0 0 0 0 0 0 ... #> $ colGPA : num 3 3.4 3 3.5 3.6 ... #> $ hsGPA : num 3 3.2 3.6 3.5 3.9 ... #> $ ACT : int 21 24 26 27 28 25 25 22 21 27 ... #> $ job19 : int 0 0 1 1 0 0 0 1 1 1 ... #> $ job20 : int 1 1 0 0 1 0 0 0 0 0 ... #> $ drive : int 1 1 0 0 0 0 0 1 1 0 ... #> $ bike : int 0 0 0 0 1 0 1 0 0 0 ... #> $ walk : int 0 0 1 1 0 1 0 0 0 1 ... #> $ voluntr : int 0 0 0 0 0 0 0 0 0 0 ... #> $ PC : int 0 0 0 0 0 0 0 1 0 1 ... #> $ greek : int 0 0 0 0 0 0 1 0 0 0 ... #> $ car : int 1 1 1 0 1 1 1 0 1 0 ... #> $ siblings: int 1 0 1 1 1 1 1 1 1 1 ... #> $ bgfriend: int 0 1 0 0 1 0 0 1 1 0 ... #> $ clubs : int 0 1 1 0 0 0 1 0 1 1 ... #> $ skipped : num 2 0 0 0 0 0 0 3 2 0.5 ... #> $ alcohol : num 1 1 1 0 1.5 0 2 3 2.5 0.75 ... #> $ gradMI : int 1 1 1 0 1 0 1 1 1 1 ... #> $ fathcoll: int 0 1 1 0 1 1 0 1 1 0 ... #> $ mothcoll: int 0 1 1 0 0 0 1 1 1 1 ... #> - attr(*, "time.stamp")= chr "25 Jun 2011 23:03"