Question

Kent county and Oakland county are located on the west and east sides of Michigan, respectively. Information about the yearly household income is given in the table below. Both distributions are strongly skewed right. A random sample of 100 households is taken from each of the very large populations. Which of the following describe the sampling distribution of the difference in sample means?

Answer 1

its c

Step-by-step explanation:

μ

x

ˉ

O

​ −

x

ˉ

K

​

​ =12060, \sigma_{\bar x_O-\bar x_K}=6259.91σ

x

ˉ

O

​ −

x

ˉ

K

​

​ =6259.91, the distribution is approximately normal.