What is the point estimate for the standard deviation of the population A simple random sample of 8 employees 1 2 3 4 5 6 7 8 age 25 32 26 40 50 54 22 23 gender m m m m f m m f?

how do you find point estimate for standard deviation?

1) The dashes are only here to keep the chart lined up. I posted this before and it didnt line up correctly.

2) Hopefully you're familiar with X bar. The three Xs have the bar (_) symbol above them. Hope this helps!

Make Chart First=

-----------------------(_)---------------(_)--------------(_)

--------xi--------------x------------ (xi-x)------------(xi-x)2

-------25-------------34--------------(-9)---------------81

-------32-------------34--------------(-2)----------------4

-------26-------------34--------------(-8)---------------64

-------40-------------34---------------6-----------------36

-------50-------------34--------------16---------------256

-------54-------------34--------------20----------------400

-------22-------------34-------------(-12)--------------144

-------23-------------34-------------(-11)-------------121

Total= 272--------------------Total= 0----- Total= 1106

Point estimate standard deviation of population :

The square root of:

*1106/ 8-1=

1106/7=

The square root of 158= 12.56980508997653471

* I do not know how to show the square root on here but for the equation the number of sample is variable n. For the bottom of the division problem it is (n-1), which makes it 8-1=7

So the point estimate standard deviation of population is 12.56980508997653471