Re: Check out this link

It returns the message The page cannot be found Could you please check it. TIA ellen Student [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hello, List This link might be useful for students: http://help-for-students.port5.com/professor.html Student

Re: comparing 2 slopes

is correct and, also, including an interaction term to examine its statistical significance is the best approach. Ellen Hertz Mike Tonkovich [EMAIL PROTECTED] wrote in message news:3b20f210_1@newsfeeds... Was hoping someone might be able to confirm that my approach for comparing 2 slopes was correct. I

Re: Marijuana

and the predictors are MJ use that hour and N-1dummy variables for the subjects. Then you want to look at the sign and p-value of the MJ coefficient. Hope this helps. Ellen Hertz Paul Jones [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... There was some research

Re: Confidence intervals

. It is a consequence of the fact that Gamma (1,b) is the exponential density with parameter b and the convolution of Gamma (r,b) and Gamma (s,b) is Gamma (r+s,b). Ellen Hertz Arun Nagarkatti wrote: I am looking through notes for confidence interval for the exponential mean. I have been given that: Suppose

Re: FAVOUR - Marking Scripts Statistically!

not have a large prior database, I don't see what else you can do. Ellen Hertz haytham siala wrote: Hi, I have to mark scripts based on a marking scheme thus: 10 questions of equal weighting, grade each answer from A to F. So each question , obviously, counts for 10%. Given a random set

Re: P( |X1-X2| a)=? when X~N(my,sigma) (URGENT)

) is tabulated. You can apply this to X1-X2 since it has mean 2-2=0 Ellen Hertz Tarjei Knapstad wrote: I recently ran into this problem when assisting my girlfriend with her studies for an exam in basic statistics, but I've been unable to solve it: I have a random variable X normally

Re: Why quote *both* Odds Ratio and Chi^2 ?

is that the more statistically oriented reader is more often interested in the smallest p (the significance level) and the applied reader may be more interested in a CI at a pre-assigned confidence level as a sort of worst case scenario but that is just a guess. Regards, Ellen Hertz Ron Bloom wrote

Re: I need Help!!

Compute the probability that X=2 where X is binomial with n=50 and p=0.10. Ellen Hertz John Lexmark wrote: Please help me to solve this problem, I am stuck... An inspector inspects large truckloads of potatoes to determine the proportion p in the shipment with major defects prior to using

Re: Data Mining blooper

erate GIGO, that certainly is dangerous. Ellen Hertz Zubin wrote: Can you be more specific on what the misleading statements are? And why you think they are misleading. T.S. Lim Use-Author-Address-Header@[127.1] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Whil