just answer is fine, I am for checking my work.

As the sample size increases, the*

standard deviation of the population decreases

population mean increases

standard error of the mean increases

standard error of the mean decreases

Given that z is a standard normal random variable. What is the value of z if the area to the right of z is 0.1539?*

1.02

.1401

2.16

-1.09

The ability of an interval estimate to contain the value of the population parameter is described by the*

degrees of freedom.

precise value of the population mean .

point estimate.

confidence level

Random sample of size 36 are taken from an infinite population whose mean and standard deviation are 20 and 15, respectively. The distribution of the population is unknown. The mean and the standard error of the mean are*

36 and 15

20 and 15

20 and .417

20 and 2.5

In interval estimation, as the sample size become larger, the interval estimate*

become wider

become narrower

gets closer to 1.96

remain the same, because the mean is not changing