Complete parts (a) through (d) for the sampling distribution of the sample mean shown in the accompanying graph. (I attached the graph but it looks bad. Mean is 500 and there are two lines on each side: one at 460 and the other at 540)
a) What is the value of u (with an x just below)
b) What is the value of o (with an x just below)
\(\sigma_{x}\)
\(\sigma_{x}\)
c) If the sample size is n=16, what is likely true about the shape of the population?
1. shape is normal
2. shape is skewed right
3. shape is skewed left
4.shape cannot be detrmined
d) If the sample size is n = 16, what is the stadard deviation of the population from which the sample was drawn?