Which of the following is not true in regard to the Z-table

1)	Z is the number of standard deviations a given number falls from the mean.

2)	The Z-table is designed for small sample sizes.

3)	The Z-table includes only one-half of the normal distribution.

4)	Since the Z-table refers to the distance between the mean and the specified value, for areas in the tails of the distribution, the percentage must be subtracted from .50.