# Class 27: Review for Exam 2

Back to About the Projects. On to Exam 2.

This outline is also available in PDF.

Held: Monday, 7 April 2008

Summary: We review where we've been and what we've done in preparation for the second examination.

Notes:

• I will continue to reserve time at the start of class for discussion of campus events.
• A few of you reminded me that I had offered extra credit at the start of the semester for either attending campus events or supporting each other in your endeavors. Certainly, I will give you credit for supporting each other in the weeks to come, so tell me about your endeavors. I will also try to identify talks of interest. (Seth Gitter's on Friday is one.)

Overview:

• Form of the exam.
• The big picture.
• Some key ideas.
• Free-for-all.

## Form of the Exam

• Five parts
• One set of short memorization questions
• One set of short thought questions
• Three longer problems, similar to activities
• Available resources:
• Cheat sheet to be distributed tonight
• Standard normal distribution table
• t-table
• R
• The calculator on the computer
• You may start the exam any time between noon and 1pm and finish any time between 2:05pm and 3pm.
• We will fill 3819 (our normal classroom) and then put the overflow into 3815 (down the hallway).

## The Big Picture

• Unit 3: Sampling distributions
• Unit 4: What sample statistics tell us about population proportions

## Some Key Ideas

• Probability and expected values (Topic 11)
• The standard normal distribution (Topic 12)
• The CLT and what it says about sampling distributions (Topics 13-15)
• Confidence intervals for proportions (Topics 16 and 18)
• Tests of Significance for proportions (Topics 17 and 18)
• Confidence intervals for means (Topic 19)

Back to About the Projects. On to Exam 2.

Disclaimer: I usually create these pages on the fly, which means that I rarely proofread them and they may contain bad grammar and incorrect details. It also means that I tend to update them regularly (see the history for more details). Feel free to contact me with any suggestions for changes.

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The source to the document was last modified on Mon Apr 7 12:27:06 2008.
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Samuel A. Rebelsky, rebelsky@grinnell.edu

Copyright © 2008 Samuel A. Rebelsky. This work is licensed under a Creative Commons Attribution-NonCommercial 2.5 License. To view a copy of this license, visit `http://creativecommons.org/licenses/by-nc/2.5/` or send a letter to Creative Commons, 543 Howard Street, 5th Floor, San Francisco, California, 94105, USA.