Interactive Calculators

Crunch the numbers instantly.

Descriptive Statistics

Enter numbers separated by commas (e.g., 10, 20, 30, 40).

Data Set:

Confidence Interval for Mean

Sample Mean ($\bar{x}$):

Std Dev ($\sigma$ or $s$):

Sample Size ($n$):

Confidence Level (%):

Z-Test for Mean

Null Hypothesis Mean ($\mu_0$):

Sample Mean ($\bar{x}$):

Population Std Dev ($\sigma$):

Sample Size ($n$):

Simple Linear Regression

Enter X and Y values separated by commas. Must have same number of values.

X Values:

Y Values: