How to use distribution functions?
How do I use the Student, x^2 and Gaus (normal) distributions? For example in student distribution for n samples and error probability of 5% I'm going to Student's table I'm going in n-1 row and t=95 and find the corresponding number. But in Excel I don't know how it works. -- gpktm ------------------------------------------------------------------------ gpktm's Profile: http://www.excelforum.com/member.php...o&userid=17538 View this thread: http://www.excelforum.com/showthread...hreadid=493992 |
How to use distribution functions?
gpktm -
See Excel's online or offline Help for examples of the TDIST, CHIDIST, and NORMDIST worksheet functions. Then ask specific questions. (Your original question did not specify one-tail versus two-tail. And if you want an exact correspondence between Excel and a table from a book, you'll have to specify the exact assumptions for the book's table. For example, your book may be assuming degrees of freedom for the t distribution is df = n-1, but the t distribution is used in other contexts, like multiple regression, where df is not necessarily n-1.) - Mike www.mikemiddleton.com wrote in message ... How do I use the Student, x^2 and Gaus (normal) distributions? For example in student distribution for n samples and error probability of 5% I'm going to Student's table I'm going in n-1 row and t=95 and find the corresponding number. But in Excel I don't know how it works. -- gpktm ------------------------------------------------------------------------ gpktm's Profile: http://www.excelforum.com/member.php...o&userid=17538 View this thread: http://www.excelforum.com/showthread...hreadid=493992 |
How to use distribution functions?
Your description seems a bit garbled, but you migt want to see help for
TINV and NORMINV functions. Jerry gpktm wrote: How do I use the Student, x^2 and Gaus (normal) distributions? For example in student distribution for n samples and error probability of 5% I'm going to Student's table I'm going in n-1 row and t=95 and find the corresponding number. But in Excel I don't know how it works. |
How to use distribution functions?
Nevermind I found it, and by the way it wasn't any of these functions (TDIST, CHIDIST, NORMDIST). It was the inverse function of t distribution. -- gpktm ------------------------------------------------------------------------ gpktm's Profile: http://www.excelforum.com/member.php...o&userid=17538 View this thread: http://www.excelforum.com/showthread...hreadid=493992 |
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