## Z test for Mean

One sample Z-test for mean In this tutorial we will explain the six steps approach used in hypothesis testing to test hypothesis about the population …

## Z-Test Calculator for Proportion with Examples

$Z$-Test Calculator for single proportion In this tutorial we will discuss $z$-test calculator for testing single proportion with some numerical examples on $Z$-test for testing …

## Z-Test for Proportion

Z-Test for Proportion In this tutorial we will discuss about the step by step procedure of one sample $Z$-test for testing population proportion. Let $X$ …

## Confidence Interval for Variance Examples

Confidence Interval for Variance with Examples In this tutorial we will discuss some numerical examples to understand how to construct a confidence interval for population …

## Confidence Interval for mean sigma unknown

Introduction Confidence interval can be used to estimate the population parameter with the help of an interval with some degree of confidence. One such a …

## Confidence Interval for mean sigma unknown examples

This tutorial covers examples on confidence interval for the population mean when the population standard deviation is unknown. Example 1 A new brand of laptop …

## Confidence Interval for mean | Statistics and Probability

Introduction Confidence interval can be used to estimate the population parameter with the help of an interval with some degree of confidence. One such a …

## Confidence Interval Calculator for mean examples

Confidence Interval for Mean Use this calculator to compute the confidence interval for population mean when the population standard deviation is known. Confidence Interval Calculator …

## Bonferroni Inequality

Bonferroni’s Inequality For $n$ events $A_1,A_2,\cdots, A_n$ $$\begin{equation}\label{bof} P\big(\cap_{i=1}^n A_i\big)\geq \sum_{i=1}^n P(A_i) -(n-1). \end{equation}$$ Proof For $n =2$,  \begin{equation*} P(A_1\cup A_2)= P(A_1)+P(A_2) …