SandwichAnts: Ants on Sandwiches
In Stat2Data: Datasets for Stat2
Description
Format
Details
Source
Description
Ant counts on samples of different kinds of sandwiches
Format
A dataset with 48 observations on the following 5 variables.
Trial Trial number
Bread Type of bread: Multigrain, Rye, White, or Wholemeal
Filling Type of filling: HamPickles, PeanutButter, or Vegemite
Butter Butter on the sandwich? no or yes
Ants Number of ants on the sandwich
Details
As young students, Dominic Kelly and his friends enjoyed watching
ants gather on pieces of sandwiches. Later, as a university student, Dominic
decided to study this with a more formal experiment. He chose three types of
sandwich fillings (vegemite, peanut butter, and ham & pickles), four types
of bread (multigrain, rye, white, and wholemeal), and put butter on some of
the sandwiches.
To conduct the experiment he randomly chose a sandwich,
broke off a piece, and left it on the ground near an ant hill. After several
minutes he placed a jar over the sandwich bit and counted the number of
ants. He repeated the process, allowing time for ants to return to the hill
after each trial, until he had two samples for each combination of the three
factors.
Source
Margaret Mackisack, “Favourite Experiments: An Addendum to What is the Use of Experiments Conducted by Statistics Students?",
Journal of Statistics Education (1994)
http://www.amstat.org/publications/jse/v2n1/mackisack.supp.html
Stat2Data documentation built on May 2, 2019, 7:25 a.m.
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Description Format Details Source
Description
Ant counts on samples of different kinds of sandwiches
Format
A dataset with 48 observations on the following 5 variables.
Trial | Trial number |
Bread | Type of bread: Multigrain, Rye, White, or Wholemeal |
Filling | Type of filling: HamPickles, PeanutButter, or Vegemite |
Butter | Butter on the sandwich? no or yes |
Ants | Number of ants on the sandwich |
Details
As young students, Dominic Kelly and his friends enjoyed watching
ants gather on pieces of sandwiches. Later, as a university student, Dominic
decided to study this with a more formal experiment. He chose three types of
sandwich fillings (vegemite, peanut butter, and ham & pickles), four types
of bread (multigrain, rye, white, and wholemeal), and put butter on some of
the sandwiches.
To conduct the experiment he randomly chose a sandwich,
broke off a piece, and left it on the ground near an ant hill. After several
minutes he placed a jar over the sandwich bit and counted the number of
ants. He repeated the process, allowing time for ants to return to the hill
after each trial, until he had two samples for each combination of the three
factors.
Source
Margaret Mackisack, “Favourite Experiments: An Addendum to What is the Use of Experiments Conducted by Statistics Students?",
Journal of Statistics Education (1994)
http://www.amstat.org/publications/jse/v2n1/mackisack.supp.html
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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