Question: Thirty samples are taken of seven digit numbers. Each of these digits has been drawn, with replacement, from the integers 0 through 9, inclusive. The samples are given in the following table:
![1781_31.png](https://secure.tutorsglobe.com/CMSImages/1781_31.png)
(a) Compute the sample means, the mean of the sample means, and the mean of the population.
(b) Compute the standard deviation of the population and the standard deviation of the sample means, and verify that σmean ≈ σ/√n for the appropriate choice of n.