06/05/06
12.7.2 (part)
1. Difficult - Why is Xn considered the "unbaised" estimator of mu. I understand how it can get close to mu but why is it "unbaised." If we had bad luck, couldn't we have randomly picked a very skewed sample... which doesn't accurately represent the population? What would be "baised" then?
2. Reflective - We could probably use the standard error in Chemistry. (Though we didn't use this exact calc in labs... we did do the whole "5.433 +/- 0.001" thing.)
1. Difficult - Why is Xn considered the "unbaised" estimator of mu. I understand how it can get close to mu but why is it "unbaised." If we had bad luck, couldn't we have randomly picked a very skewed sample... which doesn't accurately represent the population? What would be "baised" then?
2. Reflective - We could probably use the standard error in Chemistry. (Though we didn't use this exact calc in labs... we did do the whole "5.433 +/- 0.001" thing.)
posted by Tina Marcroft at 11:49 PM
0 Comments:
Post a Comment
<< Home