Re: Homework Problem

2001-04-02 Thread Glen Barnett
Michael Scheltgen [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Suppose X1, X2, X3, and X4 have a multivariate Normal Dist'n with mean vector u, and Covariance matrix, sigma. (a) Suppose it is known that X3 = x3 and X4 = x4. What is: 1)The expected value

(no subject)

2001-04-02 Thread Jan Sjogren
SAT scores are approximately normal with mean 500 and a standard devotion 100. Scores of 800 or higher are reported as 800, so a perfect paper is not required to score 800 on the SAT. What percent of students who take the SAT score 800? The answer to this question shall be: SAT scores of 800+

SAT z3 (Was: Re: (no subject))

2001-04-02 Thread Donald Burrill
Everything you need is in what you wrote. You do understand that "z" is the usual shorthand for "a standard score", and that a standard score is the representation of a given raw score as its deviation from the population mean in standard-deviation units? The rest is merely a lookup in a

Re: (no subject)

2001-04-02 Thread dennis roberts
well, this is a tricky sort of ? if in fact, all REAL scores that actually convert to a SAT value ... anything = to or than 800 are listed as ... 800 ... then, the ? really can't be ... what is the p value for having 800 or more ... has to be what is the p value for 800 but, the

ASA Biometrics Section Awards

2001-04-02 Thread Chuck Davis
NOMINATIONS SOUGHT FOR 2001 BYAR YOUNG INVESTIGATOR AWARD AND BIOMETRICS SECTION TRAVEL AWARDS Have you (or, perhaps one of your students) submitted an abstract for the 2001 Joint Statistical Meetings (JSM)? If so, please note that the Biometrics Section is seeking nominations for the 2001

Error term in repeated-measures ANOVA

2001-04-02 Thread Will Hopkins
I do all my repeated measures analyses with mixed modeling in SAS these days, but I get called on to help people who use standard repeated-measures analyses with other stats packages. So here's my question, which I should know the answer to but I don't! In a repeated-measures ANOVA, most

Re: stan error of r - Virus

2001-04-02 Thread Thomas Gatliffe
Dr. Knodt, Perhaps you should make an appointment with some nerdy geek in the IR department who can explain to you how viruses get promulgated. It is usually through executables (.exe) files or microsoft macros. Otherwise you will continue to be needlessly worried about non-existent

attachments

2001-04-02 Thread Bob Hayden
I checked with a nerdy geek and was told that it is a waste of bandwidth to broadcast attachments to an entire mailing list. Although not every attachment is a virus, NO ASCII text is. Dr. Knodt's suggestion is entirely consistent with email etiquette. - Forwarded message from Thomas