Hello, every one,
Using the qt() function in R, I got a different Student t-value with the
Student t table.
e.g. the return value of function qt(0.95,9) is 1.833, while in table it is
2.262.
I do not know why the difference exists. I guess it may be a bug in R.
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Hi Huaru,
Are you sure you are looking at 0.95 and NOT 0.975?
as qt(0.975,9) = 2.262
generally tables are given for alpha/2 (alpha=0.05 in your case)
significance.
Please check carefully.
Thx,
S.
On Sat, Nov 7, 2009 at 4:02 AM, huaru wang huaru.w...@gmail.com wrote:
Hello, every one,
Hi, Sunny,
Sorry for my mistake. Thank you for your correction.
Thx,
Huaru
2009/11/7 Sunny Srivastava research.b...@gmail.com
Hi Huaru,
Are you sure you are looking at 0.95 and NOT 0.975?
as qt(0.975,9) = 2.262
generally tables are given for alpha/2 (alpha=0.05 in your case)
On 07-Nov-09 09:02:38, huaru wang wrote:
Hello, every one,
Using the qt() function in R, I got a different Student t-value
with the Student t table.
e.g. the return value of function qt(0.95,9) is 1.833, while in
table it is 2.262.
I do not know why the difference exists. I guess it may
Sunny Srivastava wrote:
Hi Huaru,
Are you sure you are looking at 0.95 and NOT 0.975?
as qt(0.975,9) = 2.262
generally tables are given for alpha/2 (alpha=0.05 in your case)
significance.
Please check carefully.
Or, put differently, tables are often given for two-sided p-values
(especially
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