hand_washing | R Documentation |
From chapter 28 of De Veaux, Velleman, and Bock (2009):
a data frame with 32 ovservations of 2 variables.
the bacterial count after washing hands
the method of handwashing used
"A student decided to investigate just how effective washing with soap is in eliminating bacteria. To do this she tested four different methods – washing with water only, washing with regular soap, washing with antibacterial soap (ABS), and spraying hands with antibacterial spray (AS) (containing 65% ethanol as an active ingredient). Her experiement consisted of one experimental factor, the washing Method, and four levels."
De Veaux, R.D., Velleman, P.F., & Bock, D.E. (2009). Intro Stats (4th ed). Pearson.
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