This data set contains information on 78 people using one of three diets. The dataset is primarily used for ANOVA.

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Diet data set

This data set contains information on 78 people using one of three diets.  The dataset is primarily used for ANOVA.

Variable name	Variable	Data type
Person	Participant number
gender	Gender, 1 = male, 0 = female	Binary
Age	Age (years)	Scale
Height	Height (cm)	Scale
preweight	Weight before the diet (kg)	Scale
Diet	Diet	Binary
weight10weeks	Weight after 10 weeks (kg)	Scale
weightLOST	Weight lost after 10 weeks (kg)	Scale

 

Research questions:

Technique	Research question
1.       Paired t-test	Ignore diet and test to see if weight has been lost
2.       Compute variable	Remove weight lost and get students to calculate it using before/after weights
3.       Summary statistics	Summary statistics by diet
4.       One way ANOVA	Which diet was best for losing weight?	Are there gender differences for weight lost?
5.       Two-way ANOVA	Effect of diet and gender on weight lost
6.       Interactions	Means plot of weight lost by diet and gender
7.       ANCOVA	Add height to either ANOVA

 

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