I am about to enter… stats hell. I have an exam that I have been studying for over a week now. I am either totally over prepared, or I may get called on the fact that I don’t get a word of this shit. Or maybe I do…
Interval Estimates: Point estimation ignores sampling variability An interval estimate of a parameter is a range of values of the sample estimates that has known probability of containing the parameter. Example: Constructing a confidence interval around a Mean The notion of an interval estimate of a parameter with a confidence coefficient is assumed to be familiar. A point estimate, on its own, doesn’t convey any indication of reliability, but a point estimate together with its standard error would do so. This idea is incorporated into a confidence interval, which is a range of values within which we are “fairly confident” that the true (unknown) value of the parameter lies. The length and location of the interval are random variables and we cannot be certain that will actually fall within the limits evaluated from a single sample. So the object is to generate narrow intervals which include with a high probability.
errr.. wish me luck.
In other news: my iPod is broken. Again. I have had the thing for about two years… wait I had one, it broke after a year, so I sent it back and this is my second one, and it seems to be broken again. I call bullshit.
Finally (before I go to die), Borat didn’t make it to Lethbridge or Calgary this week. Argh. I’ve been waiting to see this movie since the Summer, and I have let the hype and the brillant publicity and promotion work me into a frenzy. I was even going to get a sitter for my son so I could go see it tonight, and NOTHING!!
Question: what do you want for Xmas?