Memoir: make the spacing between lines one-and-a-half and make an empty line between two paragraphs including no indent (like in Word)

Question

I tried following for one-and-a-half-spacing:

\OnehalfSpacing
\setSingleSpace{\baselinestretch}

And this for making paragraphs look like in word (empty line between, no indent):

\documentclass[11pt,a4paper,oneside, oldfontcommands, parskip=full]{memoir}

Nothing worked. Please help.

Answer 1

As mentioned by @OlegLobachev an MWE from you would have been very helpful. Here is a simple one that does paragraphing as you asked for.

% parprob.tex  SE 650510

\documentclass{memoir}
\usepackage{lipsum}

\OnehalfSpacing
\setSingleSpace{\baselinestretch}

\setlength{\parindent}{0pt}  %% no paragraph indent
\setlength{\parskip}{\baselineskip} %% blank line between paragraphs

\begin{document}

\lipsum[1]

\lipsum[2]

\end{document}

EDITED to correct second call to \lipsum as pointed out by @barbarabeeton.