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Showing 1 to 9 of 9 data sets
Data Set/Description Owner Last edited Size Views
PS 10.3, Table 16: Elapsed Times vs Mean Concentrations of MalathionkcramerNov 19, 2019204B1
Data for IA Exercise 1.3.4: Percentages of Women/Men Who Are Married (by Year)kcramerNov 1, 2019198B34
Data for IA Exercise 1.3.10: 1500-Meter Run Record TimeskcramerNov 1, 2019355B15
Text Messaging, Categorized by Age
Respondents aged between 18 and 64 categorized into age classes. The percentage of respondents in each class who sent/received texts regularly was studied. This data is not my own, but comes from A Pathway to Statistics, section 6.3, example 5. I did not make this explicit in the title of the datasheet, as I do not want my students going straight to the book for the solution.
kcramerOct 28, 201975B11
Mean Weights of Boys Ages 2 to 12
I'm using this for Modeling Linear Associations. It has a decent linear correlation coefficient. A linear regression produces the stats and scatter plot with a polynomial of order one trend line overlay which can be used to illustrate extrapolation/interpolation, error estimates, and model breakdown. For over/underestimates and error, interpolate mean weights for 3 and 5 year olds and compare with observed mean weights of 31.0 pounds and 40.5 pounds, respectively. For model breakdown, adjust the x-axis of the scatter plot to range between 0 and 20, with integer tick marks, and the y-axis to range between 0 and 200, with tick marks 0, 10, 20, ..., 200, and an extrapolation for mean weight at age 20 will suggest a weight somewhere near 135 lbs for a 20 year old male.
kcramerOct 26, 2019110B506
Data for PS 6.2, exercise 33kcramerOct 26, 2019237B6
Data for PS 6.2, exercise 23 kcramerOct 26, 2019276B28
Digital Music Sales in the United States
Data to use exercise 7.3.77 from Pathway to Statistics for an in class example.
kcramerOct 23, 2019146B14
PS 4.2 Table 23
Use for example of comparing the means and standard deviations of two distributions.
kcramerSep 18, 2019386B39


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