MCS 142 Homework

MCS 142 Homework Assignments

Click on Reload. Last updated 5/12 5:50 p.m.

3. Statistical Inference

Section	Topic/notes	Problems	Due Date
8.1	Inference for a single proportion	8.6, 8.7, 8.13, 8.14, 8.15, 8.20	R 5/6
8.2	Comparing two proportions	8.36, 8.39	R 5/6
8.1	Exact confidence interval	Extra credit: (ps) (pdf)	M 5/10
8.2		8.50, 8.76	M 5/10
8.2	Wilson estimator	Extra credit: (ps) (pdf)	M 5/10
Ch. 9	Analysis of two-way tables Chi-square	9.12 (also test for a relationship), 9.42 In each Exercise, give tables of expected values and of terms of the X² statistic.	M 5/10
Ch. 9	Chi-square for 2-way tables and goodness of fit	9.20, 9.24, BPS 20.14	R 5/13
Ch. 10	Inference for regression	10.2, 10.4, 10.6	R 5/13
Ch. 12	One-way ANOVA	12.2, 12.4, 12.27, 12.30 (In 12.27, skip the question about pooling variances.) (In 12.30c, skip R².)	M 5/17

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 accepted, but your lowest two homework scores will be dropped.

Do extra credit problems entirely on your own.

"On my honor, I pledge that I have not given, received, or tolerated others' use of unauthorized aid in completing this work."

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