Archive for November, 2009

Project 2

November 23, 2009

Project 2 is designed to assist you in preparing for the final exam. It is due at the start of the final exam and will not be accepted late.

The project consists of some hand-picked problems from the textbook:

p. 51 # 26, 32;
p. 87 # 31 – construct a stem-n-leaf plot and describe the distribution only;
p. 100 # 4abcd;
p. 103 # 12cd;
p. 170 # 2;
p. 172 # 10abc;
p. 175 # 20;
p. 217 # 6abcd, 8acd;
p. 281 # 10, 14, 18;
p. 315 # 2, 12abcde;
p. 369 # 16, 26;
p. 370 # 30 – you are told to use the normal approximation;
p. 401 # 6 – ignore question about if the result is unusual;
p. 402 # 10 – ignore question about if the result is unusual;
p. 449 # 6;
p. 451 # 14;
p. 504 # 12;
p. 505 # 18;
p. 548 # 14, 22.

The questions must be completed in order. Each question is worth 1 point with the exception of the last two questions which are worth a total of 1 point. All required steps must be shown. You will receive either 0 points (not answered, not complete or not on the right track with answer), 1 point (all steps are completely correct) or 0.5 points (all other cases) for each answer.

Lastly, you are not permitted to work with or get assistance from anyone other than me. You are required to make a statement that you have completed the questions on your own and sign it.

Wednesday, 4 November 2009

November 4, 2009

Today we discussed Section 9.1 which concerned Confidence Intervals (CI) for population mean. It is important to know

1. how to calculate CI using the TI83/84 (and not by hand);
2. how confidence level and sample size affect CI;
3. how to interpret what a CI tells us about the parameter.

We will do many more calculations of CI over the next several class periods. Also, on Monday, we will discuss Sections 8.2, 9.2 and 9.3.

There is no homework due on Tuesday.


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