1. You reject Ho for a t-test for two independent samples. Indicate which of the following are potentially viable criticisms for your conclusion and why. If valid, how could you address the issue?

a) sample size is too small

b) did not use a one-tailed test

c) variances differ in the two equally sized sampled groups

d) variances differ where one group has many more cases

e) the dependent variable is ordinal with only four possible values

f) the 95% confidence interval does not include zero

g) the 99% confidence interval does not include zero