1. In order to use a one-sample z test in our psychic study, what else would we need to know? 2. Can you identify any sources of bias in the psychic study that might influence the results? How could...

1. In order to use a one-sample z test in our psychic study, what else would we need to know?

2. Can you identify any sources of bias in the psychic study that might influence the results? How could we control for these biases in the study?

3. Without looking at the table, for which sample size will there be a higher tcrit: n = 30 or n = 50? Explain your answer.