\documentclass[12pt]{article}

\usepackage{enumerate,pictexwd,fullpage,epsfig,amsmath,amssymb}

\begin{document}
\begin{center}
{\Large Winstats Instruction Sheet}
\end{center}
\begin{enumerate}[I. ]
\item Installing Winstats on your Computer
	\begin{enumerate}[A. ]
	\item  Go to the Peanut Software homepage. Either 
	go directly to 
		\begin{center}
		{\tt http://math.exeter.edu/rparris/default.html}
		\end{center}
	or Google ``Peanut Software.'' 
	\item Click \underline{Winstats}.
		\begin{center}
		\epsfxsize 4in
		\epsffile{pictures/winstats1}
		\end{center}
	\item Click \underline{Winstats} on the next page.
		\begin{center}
		\epsfxsize 4in
		\epsffile{pictures/winstats2}
		\end{center}
	\item Save the file.
	\item Locate the file you just saved.
	\item Unzip the file {\tt ws32z.exe}.  By default, the unzipped
	file was placed in the folder {\tt C:$\backslash$Peanut} 
	on my computer.  The unzipped file will be associated with the icon
	\epsfysize .35in \epsffile{pictures/winstatsicon}.
	\item Delete {\tt ws32z.exe}.  You do not need it.
	\end{enumerate}
\item Getting Started with Winstats
	\begin{enumerate}[A. ]
	\item Opening Winstats
		\begin{enumerate}[1. ]
		\item Double click on the Winstats icon. 
			\begin{center}
			\epsfxsize .5in
			\epsffile{pictures/winstatsicon}
			\end{center}
		\item Select ``Window $\rightarrow$ 1-var data. . .'' This will
		cause Winstats to create some random data entries.  The amount 
		of data created is also randomized.  If you cannot see all of 
		the data, this will be indicated at the bottom of the screen.  
		In the example below, there are 17 rows and 9 columns of data.
		You can use the scroll bars to view the rest of the data. 
			\begin{center}
			\epsfxsize 4in
			\epsffile{pictures/winstats3}
			\end{center}
 		\end{enumerate}
	\item Entering Data  \\ \smallskip

		Typically, students will need to input their own data 
		into the program.  Suppose we wish to analyze the grades shown 
		below.
		\begin{center}
		\begin{tabular}{|l|c|c|c|c|}
		\hline
		{\bf NAME}&{\bf Exam 1}&{\bf Exam 2}&{\bf Exam3}&{\bf Exam
		4} \\
		\hline
		\hline
		Andy & 89 & 83 & 100 & 94 \\
		\hline
		Barney & 76 & 72 & 83 & 75 \\
		\hline
		Bee & 91.5 & 96.9 & 89 & 106 \\
		\hline
		Floyd & 44 & 41 & 52 & 64 \\
		\hline
		Opie & 91.5 & 73 & 99 & 97 \\
		\hline
		Helen & 68.5 & 84.5 & 92.5 & 99 \\
		\hline
		Thelma Lou & 55 & 56 & 44 & 60 \\
		\hline
		Ernest T. & 46 & 40 & 48.5 & 59 \\
		\hline
		Clara & 83 & 87.5 & 82.5 & 97 \\
		\hline
		Goober & 76.5 & 55 & 64 & 87 \\
		\hline
		Gomer & 78.9 & 66 & 95 & 79 \\
		\hline
		Otis  & 87.5 & 91 & 75 & 88 \\
		\hline
		Jud & 50.5 & 58	& 60 & 65 \\
		\hline
		Howard & 85.5 & 68 & 91	 & 86 \\
		\hline
		Charlene & 85 &	80 & 72	 & 84 \\
		\hline
		Chelsea	& 84 & 98 & 101 & 105 \\
		\hline
		Briscoe	& 70.5 & 50 & 65 & 52 \\
		\hline
		Ellie & 94 & 85	& 72 & 72 \\
		\hline
		\end{tabular}
		\end{center}
		There are at least two ways to do this.
		\begin{enumerate}[1. ]
		\item Enter the data by hand --- I think this is the 
		most tedious way to do this, so I don't
		suggest it.
			\begin{enumerate}[a. ]
			\item Change the dimensions of the data.  Go to
			{\tt Edit $\rightarrow$ Dimensions...}  Enter 18 as
			the number of rows and 4 as the number of columns
			since there are 18 students and 4 test scores for
			each student.  As of May 2004, you cannot enter
			text data into Winstats, therefore you should not
			include a column for the names.
			\item Change each piece of data, by clicking on the
			appropriate data item, changing the data
			accordingly, and pressing {\tt Enter}.
			\end{enumerate}
		\item Import the data from a text file.
			\begin{enumerate}[a. ]
			\item Save the data in a text file.  (You can use 
			Notepad, WordPad, or a similar text editor.  I have
			had more luck with Notepad than with WordPad
			because Notepad is more basic than Word Pad.)  You
			should not include a column for the names.  As of
			May 2004, you cannot enter text data into Winstats.
			If you try to include text in this file, it is
			likely that Winstats will try to treat some of it
			as column headers and the rest will be ignored.  I
			think it is best to leave all text out of the file.
			I tried to include the column labels ``Exam 1,''
			``Exam 2,'' ``Exam 3,'' and ``Exam 4,'' in the text
			file but Winstats interpreted 1, 2, 3, and 4 as data 
			items.  Consequently I think it is best to include 
			only data in your text file.  My text file is shown
			below.  I will include this file with the
			documentation.
				\begin{center}
				\epsfxsize 3in
				\epsffile{pictures/grades.notepad.eps}
				\end{center}
			\item Go to {\tt File $\rightarrow$ Text in. . .}
				Double click on the text file containing
				your data.
			\end{enumerate}
		\end{enumerate}
	\item Changing Column Headings 
		\begin{enumerate}[1. ]
		\item Make sure you can see row 1 of the data.
		\item Click on the appropriate column label.
		\item Enter the new label,
		\item Press {\tt Enter}. 
		\end{enumerate}
		After you do this, your Winstats window should look like the 
		one shown below.
		\begin{center}
		\epsfysize 3in
		\epsffile{pictures/winstats4}
		\end{center}
	\item Changing the Data Format
		
		\smallskip
		At the moment, all of my data is displayed with five
		decimal places, but I only need to see one decimal place
		with this data.  To change this:
		\begin{enumerate}[1. ]
		\item Go to {\tt Edit $\rightarrow$ Format. . .}
		\item Change the number of decimal places from 5 to 1.
		\item Click ok.
		\end{enumerate}
	\end{enumerate}
\item Using Winstats to Calculate One-variable Statistics 
	\begin{enumerate}[A. ]
	\item To see the the one-variable statistics for all of the data
	go to {\tt Stats $\rightarrow$ Overall. . .}  You should see the
	following screen.
		\begin{center}
		\epsfxsize 4in
		\epsffile{pictures/winstats5}
		\end{center}
	Notice that these statistics include all 72 test scores.  It is
	unlikely that these are the statistics you desire since each column
	represents a different exam.  
	\item To see the one-variable statistics for a single column of the
	data go to {\tt View $\rightarrow$ Only column 1. . .}  Suppose we
	want to examine the scores for Exam 2, then we will need to enter
	2 and click ok.  Notice that the scores in column 2 are now red.
	These are the scores under consideration.  Once again. 
	go to {\tt Stats $\rightarrow$ Overall. . .}  You should now be
	viewing the statistics for Exam 2.
		\begin{center}
		\epsfxsize 4in
		\epsffile{pictures/winstats6}
		\end{center}
	\end{enumerate}
\item Using Winstats to Draw Graphs
	\begin{enumerate}[A. ]
	\item Histograms
		\begin{enumerate}[1. ]
		\item Go to {\tt Stats $\rightarrow$ Histogram
		$\rightarrow$ Histogram. . .}  You should see a histogram
		that is similar to the one shown below.  It may differ
		slightly, depending on the interval used.
			\begin{center}
			\epsfxsize 4in
			\epsffile{pictures/histogram1}
			\end{center}
		\item Before drawing the histogram, Winstats will
		determine an interval that contains all of the data.  
		This interval may or may not be appropriate for the data.
		For example, the interval in the histogram above contains
		negative scores.  Clearly this is not appropriate. Let's 
		change the interval so that it ranges from 0 to 110.  
		To do this, go to {\tt Stats $\rightarrow$ Histogram
		$\rightarrow$ Interval. . .}  Change the low to 0 and the
		high to 110.  Click ok.  (See the histogram below.)  
			\begin{center}
			\epsfxsize 4in
			\epsffile{pictures/histogram2}
			\end{center}
		\item To see the heights of the bars, go to 
		{\tt Edit} within the
		Histogram window.  Then go to {\tt Bar labels $\rightarrow$
		Top $\rightarrow$ Frequency.}  (See the histogram below.)
			\begin{center}
			\epsfxsize 4in
			\epsffile{pictures/histogram3}
			\end{center}
		\item To see the labels on the $x$-axis go to {\tt Edit}
		within the Histogram window.  Then go to {\tt Bar
		labels $\rightarrow$ Bottom $\rightarrow$ Division.}  
		(See the histogram below.)
			\begin{center}
			\epsfxsize 4in
			\epsffile{pictures/histogram4}
			\end{center}
		\end{enumerate}
	\item Other Graphs  

		\smallskip
		You can obtain stem and leaf plots and box and whiskers
		plots in a similar manner.
	\end{enumerate}
\item Including Graphs in Other Documents
	
	\smallskip
	To include a graph in another document go to {\tt File
	$\rightarrow$ Copy to clipboard}.  You can then paste the graph
	into another document, such as a Word document.  If you use \LaTeX,
	you could paste the graph into a document and convert it to an
	acceptable picture format such as an {\tt .eps} file.
\item Calculating Probabilities with Winstats
	\begin{enumerate}[A. ]
	\item The Normal Distribution
		\begin{enumerate}[1. ]
		\item Go to the main Winstats window.  Choose {\tt Window
		$\rightarrow$ Probability $\rightarrow$ Normal...}
		You should see a normal distribution like the one below.
			\begin{center}
			\epsfxsize 4in
			\epsffile{pictures/normal1}
			\end{center}
		\item To calculate the probability ${\rm P}(-.3 \leq x \leq
		1.5)$, go to {\tt Calc $\rightarrow$ Probabilities.}  Enter
		$-.3$ for ``low x'' and $1.5$ for ``high x.''  Click
		probability.  You should see that ${\rm P}(-.3 \leq x \leq
		1.5) \approx .55110$.  Also, the area under the normal
		curve from $x=-.3$ to $x=1.5$ should now be shaded.
			\begin{center}
			\epsfxsize 4in
			\epsffile{pictures/normal2}
			\end{center}
		\item You can change the parameters of the distribution by
		going to {\tt Edit $\rightarrow$ Parameters...}
		\end{enumerate}
	\item The Binomial Distribution
		\begin{enumerate}[1. ]
		\item Go to the main Winstats window.  Choose {\tt Window
		$\rightarrow$ Probability $\rightarrow$ Binomial...}
		You should see a binomial distribution like the one below.
			\begin{center}
			\epsfxsize 4in
			\epsffile{pictures/binomial1}
			\end{center}
		\item To see a normal distribution with the same mean and
		standard deviation go to {\tt Edit $\rightarrow$ Normal
		overlay}.  The area under the normal curve and the area of
		the histogram will be equal.
			\begin{center}
			\epsfxsize 4in
			\epsffile{pictures/binomial2}
			\end{center}
		\item You can change the probability of success and the
		number of trials by going to {\tt Edit $\rightarrow$
		Parameters...}  Experiment with these parameters.  As the
		number of trials increases, the histogram more closely
		approximates the normal curve. 
		\item You can calculate binomial probabilities by going to
		{\tt Calc $\rightarrow$ Interval...}.  
		\end{enumerate}
	\item Other Distributions

		\smallskip
		Winstats contains several other distributions.
		Experiment with some of these distributions.
	\end{enumerate}
\item Simulations and Demos
	
	\smallskip
	Winstats contains several Simulations and a few Demos.  Go to the
	main Winstats window.  Choose {\tt Window $\rightarrow$
	Simulations} or {\tt Window $\rightarrow$ Demos} to try some of
	these programs.  For the most part, they are pretty easy to
	understand.  The various help menus tend to be pretty terse, but
	tend to be very helpful.
\end{enumerate}
\end{document}
