mean & std.dev of all possible mean?

[newbiestats]

if somebody knows how to help me that would be appreciated!

According to U.S. Bureau of Labor Statistics publication news, self-employed persons with home based
businesses work a mean of 23 hours per week at home with a standard deviation of 10 hours.

(a) For a sample of size 100, ?nd the mean and standard deviation of all possible sample mean hours
worked per week at home.
(b) Repeat part (a) for a sample of size 1000.

 

[tkhunny]

EXACTLY the same as the others.

Mean is the same
Standard Deviation is the population mean divided by the square root of the sample size.

Every time.