I'm currently performing a mock research comparative analysis for a class. I'm researching the financials of 'our' metrics versus our highest competitors. One of the questions I'm attempting to answer asks if the variances (or standard deviations) of 'our' profit margins are statistically similar to the variances in profit margins of our competitors over a five year period. I have 11 companies representing the profit margins of our competitors, and of course the reports on our profit margins for these five years.
Now it's been a while since my last stats course... so I'm wondering, would I use an F or Levene's Test to answer this? Or am I completely off base... and should look to another form of analysis.
posted by Steve073190
on Sep 19, 2011 -
4 answers
I need some rather specific statistical data: the number of tourists to visit Berlin in the past few years, broken down by
age. [see more inside for details]
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posted by LMGM
on Sep 23, 2010 -
3 answers
I have a wonderfully large dataset that I'm working with for a long-term project. I am analyzing a small section the dataset for my masters thesis. In meeting with my thesis advisor last week, she suggested I run some statistical tests of significance on the 4 tables I'm working with. She knows that I am yet to be versed in quantitative analysis methods (I've done solely qualitative work thus far) and that I'm under a massive time crunch to get this done. She suggested I seek help from others, as she doesn't want me to get bogged down with figuring out this step, and would rather I concentrate on analyzing the other aspects of this data. To this end, I'm wondering if somebody might be able to suggest the best type of test of significance to run, the easiest way to run it, and a good, simple resource for what the resultant values mean?
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posted by iamkimiam
on Apr 17, 2010 -
19 answers
Hello everyone,
This is a delurk, so let met start by saying hello. I'm a biology student and I have recently started my first research internship. Now I need to do some statistics, and I have never been any good at it, to the point where I don't even know what exactly a null hypothesis is and why it is important. Please recommend a good basic statistics manual, that will clear up the basics for me. I would prefer it uses R.
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posted by Coffer
on Apr 7, 2010 -
15 answers
What are the best resources/where might I be able to find statistics around agriculture/food supply? I'm interested specifically in being able to do comparisons between inputs and costs between industrial and local/sustainable agriculture.
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posted by lhl
on Feb 28, 2010 -
7 answers
I'm a statistics n00b trying to learn how to combine the results of several tests into one.
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posted by gsteff
on Oct 17, 2009 -
4 answers
Lots of interrelated data, little idea of how to analyze it. What method or type of software is best for collecting complex information for future analysis?
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posted by newlyminted
on Aug 20, 2009 -
6 answers
How important are quantitative research skills for getting a job at a DC think tank?
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posted by Spurious
on Aug 16, 2009 -
3 answers
Looking for statistics and/or reports about services given by NGOs, private companies and governments to parents, as opposed to services directed to childrens, in european countries.
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posted by elpapacito
on Aug 13, 2009 -
2 answers
Does anyone know of a good source that can help me figure out which statistical test to use, and under what circumstances?
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posted by anonymous
on Jun 15, 2009 -
3 answers
Tools for a scientific publisher to provide usage statistics for its subscribers? Is this a good idea?
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posted by chillmost
on Sep 5, 2008 -
3 answers
What does "longitudinal prediction" mean?
And more generally, where can I find an online glossary of such terms related to research statistics?
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posted by harwons
on Aug 8, 2008 -
3 answers
SurveyResearchFilter: Creating an index when response items are on different (and somewhat non-sensical) scales.
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posted by proj
on Jul 15, 2008 -
6 answers
Looking for clear, effective references of standard deviation in a marketing research project.
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posted by survivorman
on Mar 19, 2008 -
6 answers
Where could I find demographics about age groups and personal computer ownership? Specifically a percentage of people who own computers by age group
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posted by Raichle
on Sep 5, 2007 -
5 answers
[IHaveAnExamTodayFilter] I am a graduate student in social work. Today I have a midterm that will include questions on a few things I just cannot understand despite lectures, notes and a glossary. They include
confidence level, confidence interval, standard deviation and margin or error. Can you explain this stuff to me, preferably in relation to one another?
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posted by sneakin
on Jul 12, 2007 -
19 answers
I have recently seen a map of Congress that listed the number of Representatives that had been indicted, seen war, had been divorced, etc. What kind of public records are available about a landmark building like the Hancock Tower in Chicago and how can I get a hold of them?
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posted by krautland
on Apr 20, 2007 -
5 answers
StatsFilter: Evidence challenging/contradicting conventional controlled/placebo trials?
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posted by pallen123
on Jul 25, 2006 -
10 answers
Broadband vs. Dial-Up. I'm looking for current research that shows the number of users that connect to the Internet via Broadband vs. dial-up. I know its out there somewhere . . .
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posted by dhacker
on Mar 19, 2004 -
6 answers
