Review Problems


Introduce yourselves!

Icebreaker: What are you doing this weekend?


  1. If a particular set of data is normally distributed, you would find that approximately (check all that apply):

    1. 2 of every 3 observations would fall within 1 standard deviation of the mean.

    2. 19 of every 20 observations would fall within 2 standard deviations of the mean.

    3. The standard error would be smaller for 3 observations than it would be for 20 observations.

    4. The more observations you took, the lower the sample standard deviation would be.

  2. What is a confidence interval? Give an example.

  3. What is the size of confidence interval based on?


Have ONE person from each group submit the group's answers:

Make sure to include the names of all group members.

Happy reviewing!

-- Mark