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4 questions regarding hypothesis testing, survey package, ts on samples, plotting
7 messages · Khawaja, Aman, Thomas Lumley, Ben Bolker +1 more
Khawaja, Aman wrote:
I need to answer one of the question in my open source test is: What are the four questions asked about the parameters in hypothesis testing?
Please check the posting guide.
* We don't answer homework questions ("open source" doesn't mean
that other people answer the questions for you, it means you can find
the answers outside your own head -- and in any case, we don't have
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* this is not an R question but a statistics question
* please don't post the same question multiple times
sincerely
Ben Bolker
View this message in context: http://www.nabble.com/4-questions-regarding-hypothesis-testing%2C-survey-package%2C-ts-on-samples%2C-plotting-tp21154468p21154709.html Sent from the R help mailing list archive at Nabble.com.
Ben Bolker wrote:
Khawaja, Aman wrote:
I need to answer one of the question in my open source test is: What are the four questions asked about the parameters in hypothesis testing?
Please check the posting guide.
* We don't answer homework questions ("open source" doesn't mean
that other people answer the questions for you, it means you can find
the answers outside your own head -- and in any case, we don't have
any of way of knowing that the test is really open).
* this is not an R question but a statistics question
* please don't post the same question multiple times
Besides, this is really unanswerable without access to your teaching material, which probably has a list of four questions somewhere... It is a bit like the History question: "Who was what in what of whom?" (Answer: "King Gustav Adolf was a thorn in the eye of Christian IV")
O__ ---- Peter Dalgaard ?ster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
1 day later
On Wed, 24 Dec 2008, Peter Dalgaard wrote:
Ben Bolker wrote:
Khawaja, Aman wrote:
I need to answer one of the question in my open source test is: What are the four questions asked about the parameters in hypothesis testing?
Please check the posting guide.
* We don't answer homework questions ("open source" doesn't mean
that other people answer the questions for you, it means you can find
the answers outside your own head -- and in any case, we don't have
any of way of knowing that the test is really open).
* this is not an R question but a statistics question
* please don't post the same question multiple times
Besides, this is really unanswerable without access to your teaching material, which probably has a list of four questions somewhere...
Starting with 'Why is this parameter different from all other parameters?', perhaps.
It is a bit like the History question: "Who was what in what of whom?"
A traditional British equivalent is "Who dragged whom how many times around the walls of where?", which does have just about enough context.
The R answer to the original post would probably be
1. Why aren't there any p-values in lmer()?
2. How do I extract p-values from lm()?
3. Can R do post-hoc tests?
4. Can R do tests of normality?
and in statistical consulting the questions might be
1. Doesn't that assume a Normal distribution?
2. Do you have a reference for that?
3. What was the power for that test?
4. Can you redo the test just in the left-handed avocado farmers[*]
-thomas
[*] this particular subset (c) joel on software.
Thomas Lumley Assoc. Professor, Biostatistics
tlumley at u.washington.edu University of Washington, Seattle
Thomas Lumley wrote:
On Wed, 24 Dec 2008, Peter Dalgaard wrote:
It is a bit like the History question: "Who was what in what of whom?"
A traditional British equivalent is "Who dragged whom how many times around the walls of where?", which does have just about enough context.
Yes. "Joshua, Isrelites, seven, Jericho" is wrong by a hair....
O__ ---- Peter Dalgaard ?ster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
Peter Dalgaard wrote:
Thomas Lumley wrote:
On Wed, 24 Dec 2008, Peter Dalgaard wrote:
It is a bit like the History question: "Who was what in what of whom?"
A traditional British equivalent is "Who dragged whom how many times around the walls of where?", which does have just about enough context.
Yes. "Joshua, Isrelites, seven, Jericho" is wrong by a hair....
Hmmm. Achilles, Hector, ?, Troy. http://en.wikipedia.org/wiki/Achilles: Achilles chased Hector around the wall of Troy three times before Athena, in the form of Hector's favorite and dearest brother, Deiphobus, persuaded Hector to stop running and fight Achilles face to face. After Hector realized the trick, he knew his death was inevitable and accepted his fate. Hector, wanting to go down fighting, charged at Achilles with his only weapon, his sword. Achilles got his vengeance, killing Hector with a single blow to the neck. He then tied Hector's body to his chariot and dragged it around the battlefield for nine days.
Ben Bolker Associate professor, Biology Dep't, Univ. of Florida bolker at ufl.edu / www.zoology.ufl.edu/bolker GPG key: www.zoology.ufl.edu/bolker/benbolker-publickey.asc
Ben Bolker wrote:
Peter Dalgaard wrote:
Thomas Lumley wrote:
On Wed, 24 Dec 2008, Peter Dalgaard wrote:
It is a bit like the History question: "Who was what in what of whom?"
A traditional British equivalent is "Who dragged whom how many times around the walls of where?", which does have just about enough context.
Yes. "Joshua, Isrelites, seven, Jericho" is wrong by a hair....
Hmmm. Achilles, Hector, ?, Troy. http://en.wikipedia.org/wiki/Achilles: Achilles chased Hector around the wall of Troy three times before Athena, in the form of Hector's favorite and dearest brother, Deiphobus, persuaded Hector to stop running and fight Achilles face to face. After Hector realized the trick, he knew his death was inevitable and accepted his fate. Hector, wanting to go down fighting, charged at Achilles with his only weapon, his sword. Achilles got his vengeance, killing Hector with a single blow to the neck. He then tied Hector's body to his chariot and dragged it around the battlefield for nine days.
I have http://thanasis.com/achilles.htm Achilles ignored Hector's dying wish to have his body returned to his father Priam for ransom. Instead he fastened leather straps to the body of Hector, secured them on his chariot and whipping up his immortal horses Balius, Xanthus and Pedasus, dragged the corpse three times around the walls of Troy, much to the dismay of the devastated Trojans.
O__ ---- Peter Dalgaard ?ster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907