Question

Prove that $\frac{(n-2)s^2}{\sigma^2} \sim \chi^{2}_{n-2}$

score 276 · Answer 1 · 2019-11-24 00:12:51

276

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Prove that $\frac{(n-2)s^2}{\sigma^2} \sim \chi^{2}_{n-2}$

Published on 24 Nov 2019 - 0:12

score 289 · Answer 2 · 2026-03-25 11:08:58

289

Views

T statistic for intercept and coefficient

Published on 25 Mar 2026 - 11:08

score 72 · Answer 3 · 2026-03-27 00:04:46

72

Views

Identifying the distribution of the least squares estimate with linear regression

Published on 27 Mar 2026 - 0:04

score 65 · Answer 4 · 2026-02-23 04:40:37

65

Views

Please verify whether the calculating process of the WLS estimator and the variance is correct or not.

Published on 23 Feb 2026 - 4:40

score 89 · Answer 5 · 2019-11-28 14:25:48

89

Views

How to perform multivariate linear regression on this example?

Published on 28 Nov 2019 - 14:25

score 140 · Answer 6 · 2026-03-27 00:03:52

140

Views

How do I prove the diagonal element of the hat matrix, $h_{ii}$ (leverage)

Published on 27 Mar 2026 - 0:03

score 4.8k · Answer 7 · 2026-03-25 11:16:27

4.8k

Views

How to prove sum of errors follow a chi square with $n-2$ degree of freedom in simple linear regression

Published on 25 Mar 2026 - 11:16

score 32 · Answer 8 · 2019-11-30 14:08:12

32

Views

Fitting a simple polynomial to different possibilites

Published on 30 Nov 2019 - 14:08

score 102 · Answer 9 · 2026-03-26 06:25:53

102

Views

What is the estimate coefficient when design matrix is singular, when using the Moore-Penrose generalized inverse matrix?

Published on 26 Mar 2026 - 6:25

score 347 · Answer 10 · 2026-03-25 16:05:08

347

Views

Linear regression (quadratic form)

Published on 25 Mar 2026 - 16:05

score 619 · Answer 11 · 2026-03-27 00:06:44

619

Views

Values of F and T (distribution tables) in Anova

Published on 27 Mar 2026 - 0:06

score 199 · Answer 12 · 2026-03-27 00:04:08

199

Views

Finding equation of best fit line in simple linear regression

Published on 27 Mar 2026 - 0:04

score 19 · Answer 13 · 2019-12-02 19:10:54

19

Views

Is it possible to solve for the convolution kernels defining the contributions of multiple input signals to an output signal?

Published on 02 Dec 2019 - 19:10

score 73 · Answer 14 · 2026-03-26 13:01:44

73

Views

Regression of the form $y=a-be^{-x}$

Published on 26 Mar 2026 - 13:01

score 131 · Answer 15 · 2026-03-27 17:52:21

131

Views

Is there a general way to determine the best combination of parameters to fit points?

Published on 27 Mar 2026 - 17:52

List Question

Prove that $\frac{(n-2)s^2}{\sigma^2} \sim \chi^{2}_{n-2}$

T statistic for intercept and coefficient

Identifying the distribution of the least squares estimate with linear regression

Please verify whether the calculating process of the WLS estimator and the variance is correct or not.

How to perform multivariate linear regression on this example?

How do I prove the diagonal element of the hat matrix, $h_{ii}$ (leverage)

How to prove sum of errors follow a chi square with $n-2$ degree of freedom in simple linear regression

Fitting a simple polynomial to different possibilites

What is the estimate coefficient when design matrix is singular, when using the Moore-Penrose generalized inverse matrix?

Linear regression (quadratic form)

Values of F and T (distribution tables) in Anova

Finding equation of best fit line in simple linear regression

Is it possible to solve for the convolution kernels defining the contributions of multiple input signals to an output signal?

Regression of the form $y=a-be^{-x}$

Is there a general way to determine the best combination of parameters to fit points?

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