MCS 142 Homework

MCS 142 Homework Assignments

5. Sampling Distributions

"By a small sample we may judge the whole piece."
--Miguel de Cervantes

Section	Topic/notes	Problems	Due Date
5.1	Counts and Proportions	5.2, 5.12, 5.14, 5.16, 5.19, 5.20, 5.21, 5.26	F 11/3
5.2	Sample mean & CLT	Handout: sample of n=3 from pop. of N=4 5.28, 5.30, 5.34, 5.57	T 11/7

6. Tests of Significance

"When you have confidence, you can have a lot of fun." --Joe Namath
"Opinion has a significance proportioned to the sources that sustain it." --Benjamin Cardozo (1870-1938)

Section	Topic/notes	Problems	Due Date
6.1	Confidence intervals	6.3, 6.4, 6.15, 6.16, 6.22, 6.31 Confidence interval exercises (with #1 clarified)	F 11/10
6.2	Hypothesis testing	6.34, 6.38, 6.40, 6.42	F 11/10
6.2	Hypothesis testing	6.56, 6.57, 6.106	T 11/14
6.3	Use and abuse of tests	6.74, 6.82, 6.84	T 11/14

7. Inference for Distributions

Section	Topic/notes	Problems	Due Date
7.1	Inference for the mean	7.16, 7.17, 7.18, 7.20, 7.27	F 11/17
7.1	Inference for the mean	7.2, 7.42, 7.49	F 11/17
7.2	Comparing two means	7.53, 7.59, 7.68, 7.69, 7.77, 7.78	T 11/21

Homework rules

You may work with other students on figuring out how to work homework problems, but you must write up the solutions on your own and in your own words.
Acknowledge your sources (people and texts). This is part of academic honesty.
In nontrivial problems, show how you get your answers.
If you use your calculator to get answers, indicate that in a checkable way, e.g.,
normalcdf(0, 240, 266, 16) = .0521 approximately.
Turn in neat, well-written solutions, not messy first drafts. Trim "fringes." Staple.
Turn in homework on time. Late homework will not be graded, but your lowest two homework scores will be dropped.
Do extra credit entirely on your own. Turn it in separately.

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