dennis roberts wrote:
At 02:11 PM 8/20/00 -0500, Herman Rubin wrote:
It is necessary to simultaneously consider all
consequences of the proposed action in all
states of nature.
every now and then, herman tosses in this dart ... but, i have never once
heard him say
Many people - including me - have been saying this for at least 20
years. The trouble is that people have different opinions on what the
'concepts' are. Plus maths is in many ways the best way to explain some
of the concepts. And then you need to relate the maths to the
methodological
In article [EMAIL PROTECTED],
Sheila King [EMAIL PROTECTED] wrote:
Several people have pointed out, in response to my original question,
that
xbar is the point estimator
and
xbar +/- ME is an interval of points.
Sorry I wasn't more clear in my original post.
I was aware of that difference
At 02:11 PM 8/20/00 -0500, Herman Rubin wrote:
It is necessary to simultaneously consider all
consequences of the proposed action in all
states of nature.
every now and then, herman tosses in this dart ... but, i have never once
heard him say what the heck this means ...
Point estimation, for mu:
Use x bar (sample mean) as estimator for x bar. If the size of the data
sample is at least thirty, and the population standard deviation is not
known, use the data sample's standard deviation as an approximation
thereof. Compute the SE for x bar which is
population std
if you have X bar .. that IS the point estimate OF mu ... (it is one value)
if you have calculated some confidence interval ... then that is the
INTERVAL estimate of mu ... (this is a range of values within which ... you
hope that mu falls ... )
to build the CI ... you start with a point
Several people have pointed out, in response to my original question,
that
xbar is the point estimator
and
xbar +/- ME is an interval of points.
Sorry I wasn't more clear in my original post.
I was aware of that difference pointed out above.
The problem is, the text I'm using states in the
unfortunately, most books are not clear on everything ... hopefully, the
book will deal with basic issues and concepts reasonably well
ask students the following:
say you were at the race track and ... you have picked your favorite horse
for race #7 ...
1. how many minutes do you think it
