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Hi, my name's Bart Poulson and, in this short tutorial I'm going to show how to create a
bar chart in StatCrunch using summary data. So, the first thing you need to do is you
need to get to the StatCrunch website, that's statcrunch.com, and log in; you need to have
an account already. I'm going to log into mine right here. And what we're going to do
is I'm actually going to create a data file, uh, because when you're using a summary data,
it's a, it's a really a simple thing. So I'm just going to go right here to "Open StatCrunch."
And click on that. And it's going to bring up a window, the Java window right here, where
I can, uh, type in what I want. So, I will take an extremely simple example and just
make a bar chart showing the number of men and women in a, uh, in a class. By the way,
I'm making this up; but it'll be approximately correct. First I'm going to name this variable.
You just click on it and you can't really tell you're there but you just hit delete,
delete, delete, delete, delete, and I'll put "Gender." And I'll put "Male" and "Female."
Cool. Great. Although as I've explained before, technically that's sex, not gender, but we'll
deal with that some other time. Then for the variable 2, I'll just put "N" for the sample
size. And let's imagine this is one of my, uh, sections of statistics or something. Maybe
I'll have, uh, 12 men and, mmm... 28 women. I tend to have more women than men in, uh,
behavioral science courses. Anyhow so, I just want to make a bar chart showing the number
of men and women. Very simple. All I do is I come right here to "Graphics" to "Bar Plot,"
"with summary" data because I've written down that these are the categories and these are
how many people are in them as opposed to putting, uh, one thing at the top that says
"Gender" and putting Male, Male, Female, Male, Female, Female, Female, etc. So I just hit
"Summary" and it's going to ask me where the category names are. That's "Gender." And then
where the "Counts," the frequencies, or how many people are in each category, and I have
that under N. Ok, now this is if I wanna do a, uh, selective statement. I'm not going
to do that. I'm gonna hit "Next." Uh, these things are all fine, I'm not going to worry
about those. Hit "Next." Now the one thing that I really, um, hammer on for my students
is to label things appropriately. So, I'm going to put "Gender," whoops, "Gender of
Students in," uh, let's see here, "Dr. Poulson's," although I usually go by Bart, um, "Statistics
Class." Alright. I think that's probably sufficient. And this one I don't need to worry about.
Uh, hit "Create Graph" and tada! There it is! What you have is a bar plot using summary
data. It says "Gender of Students in Dr. Poulson's Statistics Class." The frequency means how
many people are in it. And we have a bar for Female, it goes up pretty high, and a bar
for Male. You can see that there's over twice as many women as there are men. If you wanted
to, and if you wanted to change this word "Frequency" to "N," it's really simple. Just
go back to "Edit" and I can make the, uh, y-axis label. I can go like this. "N." See
what happens. Great. It just changed it to "N" up here, so if you know what that means,
if it helps, then you got it. Anyhow, that's that. Quick and easy and, uh, hope it helps
and I will see you later with some others. Thank you.