Question

For a sample size of at least 30, the sampling distribution of sample means is:

Choose 3
approximately normally distributed.
the same as the population distribution.
is centered at μ and has a spread of σ
is centered at μ and has a spread of σ/n
roughly symmetric.

Answer 1

@zepdrix

Answer 2

@Kainui

Answer 3

d, a, and...

Answer 4

e?

Answer 5

spread of sampling distribution is \(\dfrac{\sigma}{\sqrt{n}}\) right ?

Answer 6

yes I just found that in my lecture notes. I believe that is one of the choices

Answer 7

no a,b, and c

Answer 8

for sure, first and last options are true

Answer 9

normal distribution is symmetric

so if you pick first option, you must also pick the last option

Answer 10

I agree