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RocketRN
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Breakthrough Equation
y = ƒ(x) + ε
- y = the outcome or result
- X = the input, factors, or pieces needed
- ƒ = the function {how input → output}
- ε = the presence of error
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The Principle of determinism
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Margin of Error
- p = Estimate of percentage of respondents answering a question
- n = Number of respondents that answered the question
- The formula involves three basic steps:
- 1. The amount of variability in the sample denoted by p
- 2. The standard degree of precision of a 95% confidence interval
- 3. The sample size denoted by n
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Goal of Analysis
Solving for 
Y is the measure of output
Y is a function of a series of Xs, The factors affecting Y are a series of Xs.
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Calculating Percentile
- 1. Put all numbers of the data set in numerical order
- 2. Multiply k% by the total number of numbers n {if you want to know the 90th percentile and you have 25 numbers in the set, you multiply 0.90 x 25 = 22.5}3. Take that result and round up to the nearest whole number {23}4. Count the numbers from left to right {lowest to highest} until you reach the value for from step 3 {Your result would be the 23rd number in the series}
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Standard Error of Sample Means
- σ = Population standard deviation
- (you can use s - sample Standard Deviation)
n = sample size (should be at least 30)
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