Two t tests

2000-11-03 Thread Richard Lehman
A colleague sent me this note. >A statistics question. > >Temperatures taken from different portions of a stream: > >Portion 1 >16.9 >17 >15.8 >17.1 >18.7 >18 > >mean = 17.25 >variance = 0.995 > >Portion 2 >18.3 >18.5 > >mean = 18.4 >variance = 0.02 > >Do these portions have different temperatur

Position opening in experimental psychology (quant/stat)

2000-11-03 Thread Richard Lehman
Please call this to the attention of any interested individuals. Faculty position in experimental psychology with an emphasis on experimental design and statistics. Candidate must have experience teaching introductory and advanced quantitative techniques through multivariate regression and ANOVA.

Blackboards

2000-10-02 Thread Richard Lehman
A number of years ago I heard a story about a statistician who always walked into his seminar and spent 5 minutes erasing the board. One day the class erased it for him before he arrived. He came in and as usual spent 5 minutes erasing the board. When asked why, he responded something like "I use

So is Expressionist

2000-06-05 Thread Richard Lehman
Al Ovedovitz said: > >I don't know how much TextSmart cost, nor have I ever used it. However, if you >are looking for a good package to type equations and the like, I found >Mathtype >to be very useful. The package cost about $130 and was worth every penny. I >used it extensively in typing a stati

Re: over and above

2000-03-21 Thread Richard Lehman
>Surely one of the important things for students of statistics (and I could >probably replace that by any other discipline name) to learn is to communicate >the results of their work to others. For a consulting statistician this is >clearly an absolutely essential skill, but it also applies for so