stats homework questions

[mandygrl88]

hi all. i am amanda and i have homework questions. this assignment is due next friday and i need some help. can you show the work and the answer you arrived at for me?
Suppose you collect the following sample from a normal population with m = 30 and s = 5
49 61 50 58 45 59 45 63 46
what is the standard deviation of the sampling distribtuin of the sample mean x bar.?
a. 1.67
b. 2.43
c. 5
d. 7.30

find the sampling error
m = -5, x bar = -2.5, n 100
a. -7.5
b. -2.5
c. 0.25
d. 2.5
i really need help so please show me the work and the answer you arrived at. it is really stressing me out. thank you.

 

[Deleted member 4993]

hi all. i am amanda and i have homework questions. this assignment is due next friday and i need some help. can you show the work and the answer you arrived at for me?
Suppose you collect the following sample from a normal population with m = 30 and s = 5
49 61 50 58 45 59 45 63 46
what is the standard deviation of the sampling distribtuin of the sample mean x bar.?
a. 1.67
b. 2.43
c. 5
d. 7.30

find the sampling error
m = -5, x bar = -2.5, n 100
a. -7.5
b. -2.5
c. 0.25
d. 2.5
i really need help so please show me the work and the answer you arrived at. it is really stressing me out. thank you.

This is your assignment - and you need to do the work. We can only help you when you tell us exactly where you are stuck.

If you cannot even start - then you need to first learn the definitions.

What is the definition of mean?

How is it expressed in mathematical terms?