Stored Data
AMS
anorexia
bacteria
biopsy
birthwt
Boston
Cars93
coffee
cpus
Curry
epil
interaction
iris
hypotheses
mtcars
Pima.tr
survey
univariate
credit
football
CultureDiff
TS1
TS2
heart
caffeine_rm
paired_pass_stats
paired_prepost_mh3
paired_prepost_sym3
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Header
Separator
Comma
Semicolon
Tab
Quote
None
Double Quote
Single Quote
Numeric Column
Type of Categorisation
2 categories (equal frequency)
2 categories (equal distance)
3 categories (equal frequency)
3 categories (equal distance)
convert to factor variable
Select Variable X
Select Variable Y
Central Tendency
Variability
Histogram/Frequency
QQ Plot
Skewness & Kurtosis Tests/Plot
Type of test to use
One Sample t-Test
Wilcoxon Signed-Rank Test
Skewness and Kurtosis Test
Skewness-Kurtosis Plot
Alternative
two.sided
less
greater
Null Hypothesis
Alternative
two.sided
less
greater
Null Hypothesis
Type of ANOVA test
One-Way / Two-Way ANOVA
Kruskal-Wallis Test
Repeated Measures ANOVA
Friedman Test
Variable Z (2nd factor or Subject ID)
For One-Way/Two-Way ANOVA and Kruskal-Wallis: X = response, Y = grouping factor, Z = 2nd factor (optional). For Repeated Measures ANOVA and Friedman: X = response, Y = condition, Z = subject/block ID.
Question type
Difference (NHST)
Equivalence (TOST)
Paired or Unpaired?
Unpaired samples
Paired samples
Type of test to use
Two Sample t Test (equal variance)
Two Sample t Test (unequal variance)
Equivalence method
Parametric t-TOST
Nonparametric Wilcoxon-TOST
Lower equivalence bound (DeltaL)
Upper equivalence bound (DeltaU)
In TOST mode, one-sided alpha is derived from the confidence slider: alpha = (1 - confidence) / 2. Wilcoxon-TOST tests equivalence of location shift (rank-based), not equivalence of means.
Equivalence bounds (DeltaL, DeltaU) are a substantive design choice, not something chosen from the p-value. If bounds are auto-filled, treat them as starting values only and justify the final values from domain context.
Type of test to use
Pearson Chi-squared
Exact Pearson Chi-Squared by Simulation
McNemar Chi-Squared
Stuart-Maxwell Marginal Homogeneity
Bowker Symmetry (McNemar-Bowker)
Fisher Exact Test
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Input
Descriptive
Univariate Test
Two Sample Test
ANOVA
Chi-squared Test