Re: Confidence intervals

2001-09-29 Thread Herman Rubin
In article <9p2d8l$clk$[EMAIL PROTECTED]>, Ronald Bloom <[EMAIL PROTECTED]> wrote: >Herman Rubin <[EMAIL PROTECTED]> wrote: >> Teaching people to use something without any understanding >> can only be ritual; this is what most uses of statistics >> are these days. >> If one does not use numbe

Re: Confidence intervals

2001-09-28 Thread John Jackson
I am interested in how to describe the data that does not reside in the area described by the confidence interval. For example, you have a two tailed situation, with a left tail of .1, a middle of .8 and a right tail of .1, the confidence interval for the middle is 90%. Is it correct to say with

Re: Confidence intervals

2001-09-28 Thread Ronald Bloom
Herman Rubin <[EMAIL PROTECTED]> wrote: > Teaching people to use something without any understanding > can only be ritual; this is what most uses of statistics > are these days. > If one does not use numbers, it is opinion. I hope that the > pediatricians you have in your classes do not misus

Re: Confidence intervals

2001-09-28 Thread Bill Jefferys
PROTECTED]]On Behalf Of Bill Jefferys #Sent: Thursday, September 27, 2001 4:00 PM #To: [EMAIL PROTECTED] #Subject: Re: Confidence intervals # # #In article <000101c14787$f06dcf90$e10e6a81@PEDUCT225>, #<[EMAIL PROTECTED]> wrote: # ##No more than hypothesis tests necessarily tell you when

Re: Confidence intervals

2001-09-28 Thread Herman Rubin
In article <001501c1482f$756d6190$e10e6a81@PEDUCT225>, Paul R. Swank <[EMAIL PROTECTED]> wrote: >If your purpose is to try and teach students about confidence intervals, >then it makes little sense to start out by telling them the counterexamples. Without counterexamples, it becomes quasi-religio

Re: Confidence intervals

2001-09-28 Thread Herman Rubin
In article <008201c14763$9392f260$e10e6a81@PEDUCT225>, Paul R. Swank <[EMAIL PROTECTED]> wrote: >I use to find that students respoded well to the idea that the hypothesis >test told you, within the limits of likelihood set, where the parameter >wasn't while confidence intervals told you where the

RE: Confidence intervals

2001-09-28 Thread Paul R. Swank
Science Center -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Bill Jefferys Sent: Thursday, September 27, 2001 4:00 PM To: [EMAIL PROTECTED] Subject: Re: Confidence intervals In article <000101c14787$f06dcf90$e10e6a81@PEDUCT225>, <[EMAIL PROTECTED

Re: Confidence intervals

2001-09-27 Thread Bill Jefferys
half Of Bill Jefferys #Sent: Thursday, September 27, 2001 11:31 AM #To: [EMAIL PROTECTED] #Subject: Re: Confidence intervals # # #In article <008201c14763$9392f260$e10e6a81@PEDUCT225>, #<[EMAIL PROTECTED]> wrote: # ##I use to find that students respoded well to the idea that the hypothesis ##t

RE: Confidence intervals

2001-09-27 Thread Paul R. Swank
PROTECTED]]On Behalf Of Bill Jefferys Sent: Thursday, September 27, 2001 11:31 AM To: [EMAIL PROTECTED] Subject: Re: Confidence intervals In article <008201c14763$9392f260$e10e6a81@PEDUCT225>, <[EMAIL PROTECTED]> wrote: #I use to find that students respoded well to the idea that the hypo

Re: Confidence intervals

2001-09-27 Thread Bill Jefferys
In article <008201c14763$9392f260$e10e6a81@PEDUCT225>, <[EMAIL PROTECTED]> wrote: #I use to find that students respoded well to the idea that the hypothesis #test told you, within the limits of likelihood set, where the parameter #wasn't while confidence intervals told you where the parameter wa

Re: Confidence intervals

2000-10-29 Thread Ellen Hertz
Neeraj, It is easy to verify that if Y is exponential with mean t then Y/t is is exponential with mean 1. Also, the sum of n exponentials with parameter 1 has the distribution Gamma(n,1). Most texts on probability and statistics (Feller Vol II, Mood and Graybill) are references. It is a consequ