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Mataunited17
  • Member for 7 years, 7 months
  • Last seen more than 4 years ago
6 votes
1 answer
12k views

Combining two linear regression model into a single linear model using covariates

2 votes
0 answers
78 views

Why financial time series have perfect multicollinearity?

1 vote
1 answer
122 views

When is an AR model appropriate for a data set?

1 vote
1 answer
48 views

Proving covariance

1 vote
1 answer
1k views

Proof of simple linear regression

1 vote
1 answer
86 views

Proving that $\text{Cov}(Y_{t}, Y_{t-1})=\frac{\tau^2\beta^2_{1}}{1-\beta^2_{1}}$ for AR(1) process

0 votes
0 answers
324 views

Multivariate regression analysis with 7 variables

0 votes
1 answer
513 views

Too high correlation between two variables? Does it mean that there is a multi-collinearity?

0 votes
0 answers
122 views

Negative autocorrelation and max lags

0 votes
2 answers
97 views

Proving covariance using (Pearson) correlation coefficient

0 votes
0 answers
152 views

Linear regression in R: testing statistical significance with t-tests