Official ECMT 1010 thread. (1 Viewer)

[stazi]

hehe is there a smilie for "sigma" so that i can post them up

 

[absolution*]

Erm

Just use an "E "

 

[sarevok]

"
I'm getting 48: 6+-1+-4+1+2+0+10+8+2+6+5+6+8+-1+0"

Just had a quick look at the data, that -1 in your calculation (the second number) shouldn't be there

 

[sarevok]

Okay, this is for the other question you were having trouble with:

Sigma (xi + 2)^2 =

Sigma (xi^2 +4xi +4) =

Sigma (xi^2) + Sigma (4xi) + Sigma (4) =

Sigma (xi^2) + 4 X Sigma (4xi) + Sigma (4) =

65 + 4 (17) + 4 X 15 = 193

 

[stazi]

thanks sarevok. Will check that out later.

Furthermore, I'm having a bit of trouble with the assignment.

Can we copy stuff from the website with referencing it.
Eg
1) a. What study is the case study based on?

I can't see any answer apart from what's straight in the website:
A study by Blakely, Quiñones, and Jago (1995) published in the journal Personnel Psychology

 

[stazi]

Furthermore, my biggest problem is whether we have to refference everything that we even don't directly quote from and paraphrase very very heavily.
eg.
Arm strength was measured via a piece of equipment known as the Jackson Evaluation System. It measures the amount of force exerted by a particular muscle group in pounds. The arm strength data would therefore be continuous, as numerical responses as produced from a measuring process.

The answer is obviously taken from the material read from the website. So would I have to put:
(http://www.ruf.rice.edu/~lane/stat_sim/histogram/index.html accessed on 25/03/05).
at the end of it?
Doesn't this mean that every single question will have the website put down?

 

[ToO LaZy ^*]

how do i open data files which are on the CD?

by default, these files are found on:
c:/BusStats/data files/SPSS/

they are all in .sav format which i can't open with excel (well you can, but you can't read it)


EDIT: nevermind..it was in a different folder

 

[stazi]

My question is for 1. d. of the assignment it says experiment with different widths. and then print them out. Do they mean in excel or on the histogram demonstration?

How the hell do we print from a java applett.
Furthermore, if we do have to do it in excel, how do we make the histogram column graph display the bars together instead of appart.
How, also do we edit bin width in excel?

 

[s.m.i.t.h]

could someone post up the lecture notes from week 1?
i kept meaning to print them off but now they have been taken off?
thanks heaps

 

[sarevok]

For the assignment, question 2)a, is any one actually get the 'message' from Excel? For me it just computes the average, standard deviation etc. with no problems.

Edit: nevermind.

 

[stazi]

Smith, whats ure email ill email them to you. Its too big to be posted up here

 

[sarevok]

For question 4 of the assignment, are we supposed to use Excel? Because I can't seem to find a means of constructing a box and whisker plot using excel

yeah, about question 1d, i have no idea how the fuck they expect us to print from a java applet...also, q3 f, what does it mean by 'how does australia rate differently'?

edit: ok, never mind about q4, you can use phstat2 which is on the business statistics cd to make a box and whisker plot

 

[stazi]

Sarevok: i think you have to use phstat to construct a box and whisker plot.
(just realised you figured it out)
I'm not up to that part yet. I'm only up to part 2.

Here's what I have to ask: Q2 f. asks us to "draw histograms". So we manually draw them?

Furthermore, how do we make the histograms bars together, instead of apart as per the default in excel?

 

[s.m.i.t.h]

1Time4thePpl I have PM you my email
thanks

 

[spin spin sugar]

you guys are stressing me out, i havent even LOOKED at the assignment

 

[stazi]

Any chance that someone could attach alcohol.xls (from blackboard) as its down and a mate is coming over tomorrow to work on the assignment with me.
Cheers

 

[absolution*]

I scream, you scream, we all scream COLLUSION!!!!!!

Im having trouble with q2 and that asterisk thing. I totally dont get that. Apart from that im finished though.

Cant upload .xls files apparently. Sorries braz.

 

[stazi]

ahhh could u email it to sexpistols@ozemail.com.au
I'll reply to the email addy you send it from explaining the asteriks thing.

 

[absolution*]

They've been going in and out of style
But they're guaranteed to raise a smile

sent

 

[stazi]

reply sent.