FormulasFinal[1]

# FormulasFinal[1] - .8 to.1 Very Strong Relationship.6 to.8...

This preview shows pages 1–2. Sign up to view the full content.

Formulas x = ∑x Median= n+1/2 Lower Quartile= .25 (n) Upper Quartile=.75 (n) IQR= Q3–Q1 n Coefficient of Variation = s (100) x Sample Variance ( X) 2 n X 2 n– 1 Sample Standard Deviation ( X) 2 n X 2 n – 1 Regression Analysis Intercept= y – b ( x ) Regression Equation = Y ˆ = a+bx Pearson’s R Σ XY ( − Σ X)( Σ Y) /n ( 29 ( 29 ( 29 - = N N Y X - XY slope X X 2 2

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Σ X 2 ( − Σ X) 2 /n Y 2 ( − Σ Y) 2 /n Interpreting a Correlation Coefficient Strength of The Correlation Coefficient General Interpretation
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: .8 to.1 Very Strong Relationship .6 to.8 Strong Relationship .4 to .6 Moderate Relationship .2 to .4 Weak Relationship .0 to .2 Weak or No Relationship Testing for Significance= r n–2 1– r 2 Z Scores: z= x–µ/ó Probability Additive Rule: P (A B) = P (A) + P(B) - P(A B) Permutation: n! / (n–x)! Combinations: n!/ x! (n–x) ! Confidence Interval Using Sample Standard Deviation: x ± (ţ /2) (s/√n) ᾳ...
View Full Document

{[ snackBarMessage ]}

### Page1 / 2

FormulasFinal[1] - .8 to.1 Very Strong Relationship.6 to.8...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online