Discussion:
Q1. What does it mean practically when we say that we found a significant difference between two groups using a t-test?
Q2. Describe a business situation where you would want to use a t-test. Why would you choose that test? What would you expect to show by doing this?
Q3. Describe a business situation where you would want to use an ANOVA. Why would you choose that test? What would you expect to show by doing this?
Q4. Say you are looking at the difference between two groups. When you look at the means, it looks obvious that there is a difference between the groups. When you run the analysis however, your p-value comes out to be .098. Assuming that you wanted to show a difference and were able to collect more data, what would you change to ensure that you got a significant difference the second time?