# Miami University

## Two-mean t-test (Confidence interval)

Question: Sigma Apple Pi and Alpha Blueberry Pi are known across Crammer Nation University as the two fraternities that pull the most Tinder game. Considering … Read More

## Two-mean t-test (Hypothesis test)

Question: Sigma Apple Pi claims that their brothers get more daily Tinder matches than Alpha Blueberry Pi brothers. You decide to test this claim by … Read More

## One-mean t-test (Hypothesis test)

Question: Sigma Apple Pi claims that their brothers get on average 25 Tinder matches per day. You have a hunch that their daily Tinder matches … Read More

## One-mean t-test (Confidence interval)

Question: You’re going through fraternity rush at Crammer Nation University and hear that Sigma Apple Pi brothers get a lot of Tinder matches. You take … Read More

## One-proportion z-test (Hypothesis test)

Question: Crammer Nation University claims that 30% of their freshmen students joined a Greek Life chapter this year. You are curious if that’s a truthful … Read More

## One-proportion z-test (Confidence interval)

Question: You are curious the how many freshmen students from Crammer Nation University joined Greek Life this year. You conduct a random sample of 50 … Read More

## What is a confidence interval?

Imagine that you’ve just enrolled at Crammer Nation University and finished your first day of classes. You just called it quits on your high school … Read More

## Associating p-value to t-score on sampling distribution

To get some practice finding p-values with t-scores, we’ll utilize the following scenario: At Crammer Nation University, the brothers of Sigma Apple Pi fraternity get … Read More

## z-scores and sampling distributions

Okay… listen. I’ve been in your shoes. I’ve gone through stats. Sampling distributions used to confuse the crap outta me… until I understood the following: … Read More

## z-scores and normal distributions

Here at Crammer Nation, we’re big believers in explaining through examples. Let’s learn about z-scores and normal distributions through an IQ score example! The IQ … Read More