 # Understanding Inferential Statistics through Examples

Recent questions in Inferential Statistics adwelitiovb 2023-02-20

## Which of the following statements is not correct for the relation R defined by aRb, if and only if b lives within one kilometre from a?A) R is reflexive B) R is symmetric C) R is not anti-symmetric D) None of the above Duftgart3yb 2023-02-09

## A line segment is a part of a line as well as a ray. True or False twaishi03m 2022-12-18

## Which characteristic of a data set makes a linear regression model unreasonable? Bailee Richards 2022-11-26

## Find the meaning of 'Sxx' and 'Sxy' in simple linear regression zweifelndcuv 2022-11-24

## In the least-squares regression line, the desired sum of the errors (residuals) should bea) zero b) positive c) 1 d) negativee) maximized Brandon White 2022-11-24

## Can the original function be derived from its ${k}^{th}$ order Taylor polynomial? ajakanvao 2022-11-23

## Should the independent (or dependent) variables in a linear regression model be normal or just the residual? Kierra Griffith 2022-11-22

## What is the relationship between the correlation of two variables and their covariance? Laila Murphy 2022-11-20

## Correlation boundLet x and y be two random variables such that:Corr(x,y) = b, where Corr(x,y) represents correlation between x and y, b is a scalar number in range of [-1, 1]. Let y' be an estimation of y. An example could be y'=y+(rand(0,1)-0.5)*.1, rand(0,1) gives random number between 0, 1. I am adding some noise to the data.My questions are:Is there a way where I can bound the correlation between x, y' i.e. Corr(x,y')?I mentioned y' in light of random perturbation, I would like to know what if I don't have that information, where I only know that y' is a estimation of y. Are there any literature that cover it? ajumbaretu 2022-11-20

## What is the benefit of OU vs regression for modeling data, say data in the form of ($x,y$) pairs? apopiw83 2022-11-20

## Can you determine the correlation coefficient from the coefficient of determination? Laila Murphy 2022-11-20

## What kind of technique is to be adopted if I have to find an equation or model for say, $D$ depends on $C$, $C$ changes for a set of $B$, which changes for different $A$. Kale Sampson 2022-11-19

## From numerical simulation and regression analysis I discovered that the root-mean-square amplitude of white noise with bandwidth $\mathrm{\Delta }\phantom{\rule{negativethinmathspace}{0ex}}f$ is proportional to $\sqrt{\phantom{\rule{negativethinmathspace}{0ex}}\mathrm{\Delta }\phantom{\rule{negativethinmathspace}{0ex}}f}$. How can this be derived mathematically ? Yaretzi Mcconnell 2022-11-19

## How can one find the root of sesquilinear form with positive definite matrix? Kayley Dickson 2022-11-18

## In a Simple Linear Regression analysis, independent variable is weekly income and dependent variable is weekly consumption expenditure. Here $95$% confidence interval of regression coefficient, ${\beta }_{1}$ is $\left(.4268,.5914\right)$. Adison Rogers 2022-11-17

## How to find AIC values for both models using $R$ software? fabler107 2022-11-15

## True or false? The amount of hours you work babysitting and the amount of money you earn- has correlation, but no causation Bayobusalue 2022-11-12

## Are the ordinary least squares regression coefficients uniformly integrable? Fahdvfm 2022-11-12
## Find a regression to this : $a\equiv t\phantom{\rule{0.444em}{0ex}}\left(\mathrm{mod}\phantom{\rule{0.333em}{0ex}}\mathrm{\Delta }\right)$, $a$ and $\mathrm{\Delta }$ are the unknowns constants. Aryanna Fisher 2022-11-12