Description Usage Format Details Examples

The final-exam scores (out of 40 possible) for an experimental group of 20 algebra students.

1 | ```
data("experimental")
``` |

The format is: num [1:20] 36 35 35 31 30 29 27 27 26 23 ...

One year at Arizona State University, the algebra course director
decided to experiment with a new teaching method that might reduce
variability in final-exam scores by eliminating lower scores. The
director randomly divided the algebra students who were registered
for class at 9:40 A.M. into two groups. One of the groups, called
the *control group*, was taught the usual algebra course; the other
group, called the *experimental group*, was taught by the new teaching
method. Both classes covered the same material, took the same unit
quizzes, and took the same final exam at the same time. The final-exam
scores (out of 40 possible) for the students in the experimental group
are provided in the experimental dataset.

1 2 3 4 |

```
num [1:20] 36 35 35 31 30 29 27 27 26 23 ...
```

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