Linear Regression

Descrição

Regression Mapa Mental sobre Linear Regression, criado por Keith Walker em 14-04-2013.
Keith Walker
Mapa Mental por Keith Walker, atualizado more than 1 year ago
Keith Walker
Criado por Keith Walker mais de 11 anos atrás
651
1

Resumo de Recurso

Linear Regression
  1. Assumptions
    1. Linear relationship between x and y
      1. Observations are independant
        1. Residuals are Normally Distributed
          1. residuals have same variability
            1. x variable measured without error.
            2. Examining b or the slope. ie Null that the true slope is zero. Reject if p<.05
              1. ANOVA F-ratio (explained & unexplained mean squares)
                1. b/SE(b) which follows t-distribution on n-2 dof
                2. Y = a + bx
                  1. Y = dependant varible
                    1. a = intercept ( value of Y when x = 0)
                      1. b = slope ∑(x-x͞) (y-y͞) / ∑(x-x͞)²
                        1. explanatory variable
                        2. When we are interested in predicting y from a change in x; or predicting an explanatory variabel from a dependant one.

                          Semelhante

                          Statistics Vocab
                          Nabeeha Yusuf
                          ECO 351 - Business Statistics II - Problem Set 2
                          LemonKing
                          ECO 351 - Business Statistics II - Vocabulary and Equations
                          LemonKing
                          Multiple Linear Regression
                          Keith Walker
                          Regression Test New Reader
                          wojtek niznam
                          Regression test pdf
                          wojtek niznam
                          Linear Regression
                          Vishakha Achmare
                          Logistic Regression
                          Keith Walker
                          Regression (Basics)
                          Stephen Dominick
                          Direito - Direito Constitucional e Estado
                          Natanael Lima