Rossman/Chance Applet Collection
Comparing Groups (Quantitative Response)
Sample data:
Unstacked
Use Data
Clear
Explanatory Variable:
treatment
Response Variable:
strength
Show overall
Show groups
Boxplots
Show Shuffle Options:
Number of Shuffles:
Hypothesized μ
_{2}
-μ
_{1}
:
Shuffle Responses
Data
Plot
Show Original Colors
Total Shuffles =
Count Samples
Greater Than ≥
Less Than ≤
Beyond
Overlay
t
distribution
Overlay
F
distribution
Summary Statistics:
Statistic:
Difference in means
t-statistic
Difference in medians
MAD
Mean Group Diff
Max-Min
F-statistic
R-squared
Effect size
F p-value
Show ANOVA Table:
Source
df
SS
MS
F
p-value
Treatment
2
Error
Total
Most Recent Shuffled ANOVA Table:
Source
df
SS
MS
F
p-value
Treatment
Error
Total
95% CI(s) for difference in means
About
Notes
:
MAD = mean absolute difference (same as Mean Group Diff)
Mean Group Diff = Average difference in all possible differences between groups
This applet does not work in IE8 but should work in other browsers.
Right now pasted data must have variable names (use single words, no symbols)
When pasting unstacked data, use * to fill in empty values if the groups have unequal sample sizes
To default to multiple groups, click
here
; For two groups, click
here