One Quantitative Variable, Multiple Groups
Variable name:
Input:
Raw data
Mean and standard deviation
Five-number summary
Group
Name
Input data separated by commas or spaces.
Mean
SD
n
Min
Q1
Median
Q3
Max
1
2
Graph Distributions
Graph type:
Dotplot
Histogram
Boxplot
Label histogram with:
Frequency
Relative frequency
Enter interval width:
Enter boundary value:
Summary Statistics
Perform Inference
Inference procedure:
Simulate difference in two means
Simulate difference in two medians
Simulate difference in two SDs
2-sample t interval (μ₁ - μ₂)
2-sample t test (μ₁ - μ₂)
Conservative degrees of freedom:
No
Yes
Confidence level:
%
Alternative hypothesis:
μ₁ - μ₂ > 0
μ₁ - μ₂ < 0
μ₁ - μ₂ ≠ 0
Simulates the distribution of the difference in sample means when the observations are combined, shuffled, and redistributed into two groups that match the sizes of the original groups.
Number of samples to add:
The applet will graph all of your results until you hit "Reset simulation."
Count the number and percent of dots
less than
greater than
or equal to
# of samples:
Most recent result:
Mean:
SD:
Adjust color, rounding, and percent/proportion preferences
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