Warm Up Solutions

1. In your own words, define experiment.

Sample: An experiment (designed by a researcher) compares the experimental (treatment) and control groups to draw conclusions.

2. If the z-score is 1.960, what is the confidence level? How does this relate to standard deviations?

Sample: A z-score of 1.960 represents a 95% confidence level, which represents two standard deviations.