Chapter 7: #4,6,8,10,22,26,32,34,36.
Please note that the "standard error" of a sample mean
or a sample proportion is a special name applied to a
standard deviation obtained by inference rather than by
direct measurement. That is, the standard error is an
inferred standard deviation. Until this distinction becomes
clear to you, you can simply work on the basis
"standard error = standard deviation".