CougarStats

Select one or more items from the Statistics menu.


* Note: Quartiles are calculated by excluding the median on both sides.
** Note: Skewness and kurtosis are calculated using the Type 2 method described by Joanes and Gill (1998) . Different methods may produce slightly different values.


Sample Mean


Sample Standard Deviation


Standard Error of the Mean


Coefficient of Variation


Range


Interquartile Range


Boxplot


Plot Options

Orientation

Boxplot Options


* Note: Quartiles are calculated by excluding the median on both sides.


Histogram


Plot Options

Histogram Options









R Code






R Code

R Code







R Code

R Code


R Code

Confidence Interval



Hypothesis Test




Boxplot


Plot Options

Orientation

Boxplot Options

* Note: Quartiles are calculated by excluding the median on both sides.

Histogram


Plot Options

Histogram Options


Confidence Interval



Hypothesis Test





Confidence Interval



Hypothesis Test



Boxplot


Plot Options

Orientation

Boxplot Options


* Note: Quartiles are calculated by excluding the median on both sides.

Histogram


Plot Options

Histogram Options



Confidence Interval



Hypothesis Test




Side-by-side Boxplot


Plot Options

Orientation

Boxplot Options

* Note: Quartiles are calculated by excluding the median on both sides.




Q-Q Plots for Sample 1 and Sample 2


Plot Options



Hypothesis Test



Q-Q Plot of the Difference (d)


Plot Options



Confidence Interval



Hypothesis Test



Q-Q Plot of the Difference (d)


Plot Options



Confidence Interval



Hypothesis Test




Hypothesis Test



Ranked Results by Group


Save as Excel


Side-by-side Boxplot


Plot Options

Orientation

Boxplot Options

* Note: Quartiles are calculated by excluding the median on both sides.

Q-Q Plots for Sample 1 and Sample 2


Plot Options



Confidence Interval



Hypothesis Test




Side-by-side Boxplot


Plot Options

Orientation

Boxplot Options

* Note: Quartiles are calculated by excluding the median on both sides.




Q-Q Plots for Sample 1 and Sample 2


Plot Options



One-way Analysis of Variance (ANOVA)





Side-by-side Boxplot



Plot Options

Orientation

Boxplot Options



* Note: Quartiles are calculated by excluding the median on both sides.

Histogram of Residuals



Plot Options

Histogram Options




Q-Q Plot of Residuals



Plot Options




Group Means



Plot Options




Hypothesis Test




Side-by-side Boxplot



Plot Options

Orientation

Boxplot Options



* Note: Quartiles are calculated by excluding the median on both sides.

Group Means



Plot Options




Chi-Square Test for Independence



Observed Frequencies




Expected Frequencies




Calculation of the \( \chi^2 \) statistic value







Fisher's Exact Test



Observed Frequencies





Hypothesis Test





Estimated equation of the regression line



Scatterplot


Plot Options

Line Options





ANOVA Table Formulas:


ANOVA Table:



F Distribution

The shaded region represents the rejection region at α = 0.05. The dashed red line is the observed F statistic and the dashed blue line is the critical value.











Pearson's Correlation Coefficient





Spearman's Rank Correlation Coefficient



Save as Excel



Kendall's Rank Correlation Coefficient








Estimated equation of the polynomial regression model



Scatterplot


Note: this degree only affects the curve displayed on this scatterplot and does not change the model used in any other tab.

Plot Options

Line Options





Logistic Regression Plot

Plot Options

Orientation

Line Options

Uploaded Data


Principal Component Analysis Summary


Component Loadings (Unrotated)


Component Loadings (Varimax Rotation)


Correlation Matrix


Covariance Matrix


Eigenvectors


Scree Plot


Score Plot


Biplot


Loadings Heatmap