Summary of Formulae for One Sample Hypothesis Tests
Use the tool that you are most comfortable using. Formulae below use the following symbols: α = alpha = 1 – Confidence Level, σ = population standard deviation, s =...
Author: TARMath
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Summary of Formulae for Confidence Intervals
Use the tool that you are most comfortable using. Formulae below use the following symbols: α = alpha = 1 – Confidence Level, σ = population standard deviation, s =...
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Summary of Central Limit Specials
Means/Averages Standard Error of Means: the standard deviation for the Averages Distribution: Sums Standard Error of Sums: the standard deviation for the Sums Distribution: is one sum Mean of Where...
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Summary of Continuous Distributions
Uniform a = lowest/minimum value b = highest/maximum value X ~ U(a,b) Exponential decay parameter: average time: X time ≥ 0 X ~ Exp(m) probability formula: Normal (calculations covered elsewhere, link...
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Summary of Discrete Distributions
Binomial n = number of trials p = probability of success q = probability of failure X ~ B(n,p) μ = np Geometric n = number of trials p =...
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Sourdough Bread!
I love baking, and using Sourdough Starter was an interest of mine. I know this is my Math Blog, but I don’t have another one set up know. I could...
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More Online Math Resources
Hi again! One thing I am keeping mind for my kids, since they are pretty good readers, they will be fine even if they miss a lot of formal learning....
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Online Math Materials
Hi All! It has been a while since I set aside the time to post something here. The current reason Covid-19, sure isn’t what I thought I would use. Anyway,...
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Creating a Histogram using Excel’s Data Analysis ToolPak
If you don’t have the Data Analysis ToolPak installed, please install it. The following video shows how to install the ToolPak and use it to collect the Summary/Descriptive Statistics used...
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Creating a random DataSet from a Set of Values
We will use Excel to create a Random DataSet from a list of values. The formula used is: =INDEX($B:$B,RANDBETWEEN(2,COUNTA($B:$B)),1) B is the excel column that holds our data. We use...