- #1
Economics2012
- 9
- 0
Homework Statement
If you have a box of 1,000 items, with numbers 1-10 on them, 100 for each!
And this proves the discrete uniform probability distribution.
1/10 for each.
Homework Equations
Mean = u = Exp(x) = e(x)
St dev worked out by the variation.
St Dev = square root of the variation.
Variation )5 columns - X, X-U, X-U squared, p(x) and (x-u)squared multiplied by p(x)
The Attempt at a Solution
If you have a box of 1,000 items, with numbers 1-10 on them, 100 for each!
And this proves the discrete uniform probability distribution.
1/10 for each. I got a mean of 5.5 and a std dev of 2.872 when I worked this out.
If I am asked then to conduct a sampling distribution of the mean item number? with a sample size 30? how would you do this? Is it just finding the mean and std error or is there a few steps?
what new mean and standard error would it be? would it be still mean of 5.5 and std error of 0.5244? (old std dev/sq of 30)
This is as much as I can work out? I'm stuck basically on the conduct of a sampling distribution of the mean item?If I posted this wrong can somebody tell me, I don't want a warning :)