This exam focuses on topics covered since the previous midterm. These topics include:

• central limit theorem;
• confidence intervals;
• significance tests;
• chi-squared tests.

You should know how to form confidence intervals and test statistics given relevant information, and you should be able to interpret p-values and confidence intervals.  You should know the differences among chi-squared tests and the other significance tests discussed in class.

Logistics

Write all answers on the exam paper.  Answer all questions concisely and clearly.  Pay attention to instructions that limit the number of sentences you should write when answering.  Extra verbiage may not be read or might even be penalized.

For the exam, you are allowed to use one sheet of 8.5 by 11 paper filled with any information you want to put on them.  Both sides of the sheet can be used.  You are not permitted to use any other material for the exams.

You may be asked to do calculations involving the normal curve, t-curve, and chi-squared curve.  The instructor will provide these tables (copies of the ones in our text).

Bring a calculator to the exam.

Suggestions for Studying

Useful ways to study for these exams include reviewing the extra problems and text problems, and taking the practice exams.  Below are links to the practice exams, which are all Microsoft Word files.

Practice exam 1.     Answers to the practice exam 1.

Practice exam 2.     Answers to the practice exam 2.