
Data sets shared by StatCrunch members
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cell_phones.xls
Q1. Based on a recent study, roughly 80% of college students in the U.S. own a cell phone. Do the data provide evidence that the proportion of students who own cell phones in this university is lower than the national figure?
Answer. Most likely not. Ownership of cellphones and ratios do not depend on anything.
Relevant Variables  The cell is the relevant variable and it is categorical.
Analyze Data  The formal analysis of Q1 will pinpoint on searching the population proportion. The correct statistical test is the one sample ztest for the proportion.
Null Hypothesis  Ho: p = 8
Alternative Hypothesis  Ha: p < .8
Outcomes: Cell
Success: yes
Test stat z = .71, pvalue is .239 > .05, so Ho cannot be rejected.
Roughly 78% of the students sampled own a cellphone. Even though 78% percent is less than 80%, there is not enough support to conclude that the exact data holds right for the whole college or that it would be different from the national proportion.  faithnwanne  May 3, 2019  8KB  380 
Fatal Encounters Updated September 2018
This data set was downloaded from Fatal Encounters, a nonprofit organization that is collecting data on Police Involved Deaths. This data set has been truncated to include the subject's name, age at time of death, subject's gender, subjects race, location of death, cause of death and year of death. This does not only include people shot by police, but there are also instances of police that died during fatal encounters. It is good to remind students using this data set that this is a volunteer agency collecting the data from people that are scouring news articles for evidence of these fatal encounters, thus it is not a complete population of fatal encounters, only a very, very large sample.  habarker  Apr 8, 2019  3MB  162 
Class Seating vs Grade
From Body Image Data Set:
"A student survey was conducted at a major university. Data were collected from a random sample of 239 undergraduate students".
Variables:
Gender  Male or Female,
GPA  Student's cumulative college GPA.
GPA is then converted to Grades
(where,
4.33 = A+,
4.00 = A,
3.67 = A,
3.33 = B+,
3.00 = B,
2.67 = B,
2.33 = C+,
2.00 = C,
1.67 = C).
Seat  Typical classroom seat location (Front & Back)  mallirhea86  Oct 26, 2018  2KB  3605 
Times World University Rankings (20112016)
This data comes from the annual Times magazine rankings of universities across the world. The webpage for the Times 2016 rankings is listed above in the source.
The formula for the 2016 rankings is as follows: 30% for Teaching Rating 7.5% for International Outlook Rating 30% for Research Rating 30% for Citations Rating 2.5% for Industry Income Rating. The “Total Score” from 2016 can be recreated using this formula.
Column  Description  World_Rank  University rank for a given year 
University_Name  The name of the university 
Country  Location of university 
Teaching_Rating  Rating from a 0100 scale of the quality of teaching at the university. This rating is based on the institution’s reputation for teaching, it’s student/staff ratio, it’s PhD’s/ undergraduate degrees awarded ratio, and it’s institutional income/ academic staff ratio. 
Inter_Outlook_Rating  Rating from a 0100 scale of the international makeup of a university. This rating is based the international student percentage, international staff percentage, and the percentage of research papers from the university that include at least one international author. 
Research_Rating  Rating from a 0100 scale of quality of research at the university. This rating is based on the university’s reputation, it’s research income/ academic staff ratio, and it’s production of scholarly papers. 
Citations_Rating  Rating from a 0100 scale of based on the normalized average of citations by other papers per paper from the university (how often the research from the university is cited by other papers). 
Industry_Income_Rating  Rating from a 0100 scale grading how much companies are willing to invest in the universities research. The rating is calculated based on the research income from businesses per academic staff member. 
Total_Score  The final score used to determine the university ranking based on Teaching_Rating, International_Outlook_Rating, Research_Rating, Citations_Rating, and Industrial_Income_Rating. 
Num_Students  Total number of students in a given year 
Student/Staff_Ratio  Number of students per academic staff member 
%_Inter_Students  Percentage of student body who come from a foreign county 
%_Female_Students  Percentage of student body that is female. 
Year  Academic year that the ranking was released. For example, 2016 denotes the 20152016 academic year. 
 statcrunchhelp  Apr 5, 2016  254KB  3979 
Local College Data
The following data is for the year 2011 for colleges and universities in the Delaware, District of Columbia, Maryland, Pennsylvania, Virginia and West Virginia. Variables included in the data set include the college, type of college, location of college, admissions rate, SAT scores (Reading and Math, 75th percentile), tuition and fees, average amount of financial aid, enrollment (total and undergraduate), freshman retention rate, student/teacher ratio and graduation rate (5 year).  jpalmateer  Sep 23, 2013  24KB  1618 
Responses to Facebook Survey
A recent survey asked respondents if they have a Facebook account, the average number of times a day they look at Facebook, the average number of times a week they change their status, their age, if they are a student, and their gender.
Check out the original survey here: http://www.statcrunch.com/5.0/survey.php?surveyid=1345&code=COEYO&groupid=256
Feel free to copy it for your own use  scsurvey  Mar 4, 2011  8KB  2621 
NY Times: The Most Economically Diverse Top Colleges
To measure top colleges efforts on economic diversity, The Upshot calculated a College Access Index, based on the percentage of freshmen in recent years who came from lowincome families (measured by the share receiving a Pell grant) and on the net price of attendance for low and middleincome families. The recent Pell (2012  2014) number for each college is the average percentage of the freshman class that received a Pell grant in 201112, 201213 and 201314; not all colleges had 2013 data yet. The earlier Pell (2008) value is for the fall of 2007. Average net price is the average total cost of attendance in 201213, including tuition, fees, room and board, after taking into account federal, state and institutional financial aid, for students who come from households earning between $30,000 and $48,000 a year and qualifying for federal aid.
Endowment per student is for the year 201112 and includes graduate students. The College Access Index is a combination of net price and the Pell average for 2011, 2012 and 2013, using a statistical technique known as a zscore. A college with an average score on the two measures in combination will receive a zero.  statcrunchhelp  Sep 10, 2014  4KB  1321 
Responses to opinions on H1N1
This data set consists of responses to a StatCrunch survey that was conducted between September 8th, 2009 and September 22nd, 2009. Respondents were asked if they were concerned about H1N1, if they were taking steps to avoid it, if they know anyone who has had it and whether or not they were a student.  websterwest  Sep 22, 2009  3KB  2014 
Average College Graduate Debt by State
Average debt of U.S. college graduates after attending fouryear (or more) institutions, broken down by state.  pixelwit  Sep 20, 2016  1.020B  1544 
weight of Oreo filling
The filling of original and Double Stuf oreo cookies was scraped off of the cookie and weighed. Weight is recorded in grams.
Students used plastic "serrated" knives to scrape the filling from (approximately, some were eaten first) one 16 oz. container of oreos.  carolyn.k.cuff  Sep 18, 2013  961B  1372 
Height Data set
The height of 50 students is given. One can create a histogram and see the bimodal nature of the data. There is an interesting article that argues against human height being bimodal: http://faculty.washington.edu/tamre/IsHumanHeightBimodal.pdf
 smcdaniel04  Jun 14, 2011  221B  1895 
CollegeCompletion.csv
College Completion Data
TABLE 1: cc_institution_details

unitid  Department of Education Unit ID number
chronname  Institution name
city  Institution city
state  Institution state
level  Level of institution (4year, 2year)
control  Control of institution (Public, Private notforprofit, Private forprofit)
basic  Carnegie Foundation for the Advancement of Teaching Basic Classification (2010 version)
student_count  Total number of undergraduates in 2010
awards_per_value  Completions per 100 FTE undergraduate students (average 2011, 2012, and 2013)
awards_per_state_value  Completions per 100 FTE undergraduate students, state and sector average
awards_per_natl_value  Completions per 100 FTE undergraduate students, national sector average
exp_award_value  Estimated educational spending (expenses related to instruction, research, public service, student services, academic support, institutional support, operations and maintenance) per academic award in 2013. Includes all certificates and degrees
exp_award_state_value  Spending per completion, state and sector average
exp_award_natl_value  Spending per completion, national sector average
ft_pct  Percentage of undergraduates who attend fulltime
fte_value  total number of fulltime equivalent undergraduates
med_sat_value  Median estimated SAT value for incoming students
med_sat_percentile  Institution's percent rank for median SAT value within sector
aid_value  The average amount of student aid going to undergraduate recipients
aid_percentile  Institution's percent rank for average amount of student aid going to undergraduate recipients within sector
endow_value  Endofyear endowment value per fulltime equivalent student
endow_percentile  Institution's percent rank for endowment value per fulltime equivalent student within sector
grad_100_value  percentage of firsttime, fulltime, degreeseeking undergraduates who complete a degree or certificate program within 100 percent of expected time (bachelor'sseeking group at 4year institutions)
grad_100_percentile  Institution's percent rank for completers within 100 percent of normal time within sector
grad_150_value  percentage of firsttime, fulltime, degreeseeking undergraduates who complete a degree or certificate program within 150 percent of expected time (bachelor'sseeking group at 4year institutions)
grad_150_percentile  Institution's percent rank for completers within 150 percent of normal time within sector
pell_value  percentage of undergraduates receiving a Pell Grant
pell_percentile  Institution's percent rank for undergraduate Pell recipients within sector
retain_value  share of freshman students retained for a second year
retain_percentile  Institution's percent rank for freshman retention percentage within sector
ft_fac_value  Percentage of employees devoted to instruction, research or public service who are fulltime and do not work for an associated medical school
ft_fac_percentile  Institution's percent rank for fulltime faculty share within sector
vsa_year  Most recent year of Student Success and Progress Rate data available from the Voluntary System of Accountability
vsa_grad_after4_first  Firsttime, fulltime students who graduated from this institution within four years
vsa_grad_elsewhere_after4_first  Firsttime, fulltime students who graduated from another institution within four years
vsa_enroll_after4_first  Firsttime, fulltime students who are still enrolled at this institution after four years
vsa_enroll_elsewhere_after4_first  Firsttime, fulltime students who are enrolled at another institution after four years
vsa_grad_after6_first  Firsttime, fulltime students who graduated from this institution within six years
vsa_grad_elsewhere_after6_first  Firsttime, fulltime students who graduated from another institution within six years
vsa_enroll_after6_first  Firsttime, fulltime students who are still enrolled at this institution after six years
vsa_enroll_elsewhere_after6_first  Firsttime, fulltime students who are enrolled at another institution after six years
vsa_grad_after4_transfer  Fulltime transfer students who graduated from this institution within four years
vsa_grad_elsewhere_after4_transfer  Fulltime transfer students who graduated from another institution within four years
vsa_enroll_after4_transfer  Fulltime transfer students who are still enrolled at this institution after four years
vsa_enroll_elsewhere_after4_transfer  Fulltime transfer students who are enrolled at another institution after four years
vsa_grad_after6_transfer  Fulltime transfer students who graduated from this institution within six years
vsa_grad_elsewhere_after6_transfer  Fulltime transfer students who graduated from another institution within six years
vsa_enroll_after6_transfer  Fulltime transfer students who are still enrolled at this institution after six years
vsa_enroll_elsewhere_after6_transfer  Fulltime transfer students who are enrolled at another institution after six years
counted_pct  share entering undergraduate class who were firsttime, fulltime, degreeseeking students, meaning that they generally would be part of a tracked cohort of potential graduates. The entering class of 2007 is displayed for 4year institutions; 2010 for 2year institutions.  msullivan13803  Feb 3, 2017  2MB  1099 
Happiness vs Sleep/Exercise
High School students. Sleep: average hours per night. Exercise: Average hours in typical week. Happiness: Scale 15 where 1 is extremely unhappy.  mastersond  Oct 4, 2018  371B  2387 
Data from an Introductory Statistics Class
Students in an introductory statistics class were asked to fill out a data sheet, creating the following variables.
Height  height of the student measured in inches;
Gender  student's gender (male or female);
Shoes  the number of pairs of shoes that the student owns;
Number  the student was asked to choose a number between 1 and 10;
Dvds  the student was asked how many DVD's did he or she own;
ToSleep  time (to the nearest half hour) did you go to bed last night?
(this was converted to the number of hours past midnight);
WakeUp   time (to the nearest half hour) did you wake up this morning?
(this was converted to the number of hours past midnight);
NOTE: One can complete the hours of sleep by the computation
HoursSleep = WakeUp  ToSleep;
Haircut  answer to "How much did you spend on your last haircut (including
the tip)?";
Job  answer to "How many hours do you plan to work on a job per week this
semester?;
Drink  answer to "For an evening meal, do you prefer water, soda (pop),
milk?" This was recorded as water, soda, pop, or blank.;
SleeplessInSeattle  the student was asked to rate the movie "Sleepless in
Seattle" on a scale from 1 to 10. The answer is blank if he or she did not
see the movie.;
Pirates  the student was asked to rate the movie "Pirates of
the Caribbean" on a scale from 1 to 10. The answer is blank if he or she
did not see the movie.  bayesball  Apr 13, 2008  67KB  6508 
Local College Data MH
The following data is for the year 2011 for colleges and universities in the Delaware, District of Columbia, Maryland, Pennsylvania, Virginia and West Virginia. Variables included in the data set include the college, type of college, location of college, admissions rate, SAT scores (Reading and Math, 75th percentile), tuition and fees, average amount of financial aid, enrollment (total and undergraduate), freshman retention rate, student/teacher ratio and graduation rate (5 year).  mhdrums1125  May 6, 2016  24KB  5261 

