knitr::opts_chunk$set(echo = TRUE, fig.width = 5, fig.height = 5, fig.align="center",message=FALSE, warning=FALSE, out.width = '70%') # Recall - One sample sign test ...

Let $X_i$ be observations from some probability distribution with mean $\mu$ and variance $\sigma^2$. Then we can estimate the true mean of $X$ ($E[X]$) using the ...

ABSTRACT: Time-varying coefficient models are useful in longitudinal data analysis. Various efforts have been invested for the estimation of the coefficient functions, based on the least squares ...