ex1921: Diet Wars II

In Sleuth3: Data Sets from Ramsey and Schafer's "Statistical Sleuth (3rd Ed)"

Description

In the study of different diets for losing weight (ex0623, ex1420 and ex1922), there appear to have been many more experimental subjects that dropped out from the low carbohydrate diet group than from the other two diet groups. This data set contains the numbers who did and didn't drop out in each diet group. Is there any evidence that the drop out rate differs in the three groups?

Usage

ex1921

Format

A data frame with 3 observations on the following 4 variables.

Diet

a factor with levels "LowCarb", "LowFat", and "Medit"

DroppedOut

the number of subjects who dropped out of the study

Completed

the number of subjects who completed the study

Source

Ramsey, F.L. and Schafer, D.W. (2013). The Statistical Sleuth: A Course in Methods of Data Analysis (3rd ed), Cengage Learning.

See Also

ex0623, ex1420, ex1922

Examples

str(ex1921)

Example output

'data.frame':	3 obs. of  3 variables:
 $ Diet      : Factor w/ 3 levels "LowCarb","LowFat",..: 2 3 1
 $ DroppedOut: int  10 16 24
 $ Completed : int  94 83 85

Sleuth3 documentation built on May 2, 2019, 6:41 a.m.