1) Identify the correct distribution (z, t, or neither) for each of the following.
Sample Size Standard Shape of the I or or neither
deviation distribution
n = 35
S = 4.5 Somewhat skewed
n = 20
$ = 4.5 Bell shaped
n = 25
= 4.5 Bell shaped
n = 20
= 4.5 Extremely skewed
2) How do you determine whether to use the z or t distribution in comput