\documentclass[addpoints,11pt]{exam} \usepackage{url} \usepackage{color} \usepackage{hyperref} \pagestyle{headandfoot} \runningheadrule \firstpageheadrule \firstpageheader{Scientific Computing}{Project Assignment}{11/05/2014 -- 11/06/2014} %\runningheader{Homework 01}{Page \thepage\ of \numpages}{23. October 2014} \firstpagefooter{}{}{{\bf Supervisor:} Fabian Sinz} \runningfooter{}{}{} \pointsinmargin \bracketedpoints %\printanswers %\shadedsolutions \begin{document} %%%%%%%%%%%%%%%%%%%%% Submission instructions %%%%%%%%%%%%%%%%%%%%%%%%% \sffamily % \begin{flushright} % \gradetable[h][questions] % \end{flushright} \begin{center} \input{../disclaimer.tex} \end{center} %%%%%%%%%%%%%% Questions %%%%%%%%%%%%%%%%%%%%%%%%% \begin{questions} \question The Fano factor $F=\frac{\sigma^2}{\mu}$ relates the variance of a spike count $\sigma^2$ to the mean spike count $\mu$. It is a common measure in neural coding because a Poisson process---for which each spike is independent of every other---has a Fano factor of one. The accompanying file contains two vectors with spike counts from two neurons each measured in a time window of 1s. \begin{parts} \part Plot the spike counts of both neurons appropriately. \part Use {\em Eden, U. T., \& Kramer, M. (2010). Drawing inferences from Fano factor calculations. Journal of neuroscience methods, 190(1), 149--152} to construct a test that uses the Fano factor as test statistic and tests against the Null hypothesis that the spike counts come from a Poisson process. \part Implement the test and use it on the data above. \end{parts} \end{questions} \end{document}