Inference - Z versus t - Testing a mean Intro via StatCrunch (StatCrunch tutorial series)

From spreadsheets and using functions in Excel, we expand our platform to include functions in a scripting or command environment called "R". This playlist will frequently use a browser-based R calculator at https://rdrr.io/snippets/ and in-browser statistics tool at stats.cpm.org/univariate/. My goal is to make math, applied math, and statistics easier to engage with, and more relevant, using applications and examples demonstrating how problems can be solved using Microsoft Excel, Snippets, or other online tools. I hear from students frequently that they learn better when they are shown how, and when they have a visual experience. If you happen to see this video and appreciate the effort I'm making to make math relevant as well as modern, please consider subscribing, liking, sharing, and commenting down below so that I can produce even better content. Anyone can learn math!
I frequently am asked why I don't use graphing calculators such as the TI-84 series which are so popular and widely used in K-12. The simple, honest answer is that once a person graduates high school, handheld calculators become the most irrelevant tool. It is good for one thing and one thing only: testing situations. My aim is to bring more educators on board with online technology in testing. Design test questions that ask students to evaluate, synthesize, analyze, and reason with mathematics. If we do that, there is no fear of using an online tool to "solve" a problem. Math should never be performative in the upper grades and beyond.