Estatistica Flashcards

1
Q

Formula var estimada Regressão Linear

A

Var estimada = Var (Y) * (1 - R2)

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2
Q

Formula alternativa Var amostral Regressão Linear

A

Var amostral = SQT/n-1

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3
Q

Fórmula Var (a)

A

Var (a) = Variância / sxx

Y = ax + b

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4
Q

Formula alternativa SQM

A

SQM = a^2 . Sxx

Y = ax + b

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5
Q

Estimador suficiente

A

Contempla todas as informações para estimar o parâmetro populacional

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6
Q

Estimador não tendencioso

A

Esperança do estimador é igual a do parâmetro populacional

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7
Q

Estimador eficiente

A

Menor variância possível

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8
Q

Estimador consistente

A

Estimativas convergem com o aumento do tamanho amostral

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