Math 141 - Weekly Problem Sets - Fall 2019

 Be sure to check back often, as assignments may change during the semester ( ) All chapter numbers refer Intro Stats, 4th Edition, by De Veaux, Velleman, and Bock Usually when we have problems that involve larger data sets, I will post the csv data files on OnCourse for you to import into Minitab Express

Remember to follow the Problem Set Guidelines

PS 1: due Thursday 9/5 by 3:00pm

Ch 2: 18, 27, 43
Ch 3: 16. 37, 42

PS 2: due Thursday 9/12 by 3:00pm

Ch 3: 1, 25, 28
For each part of Problem 28, first hypothesize and describe
your reasons for it, then you may use Minitab Express to
calculate the standard deviation, then discuss what you learned

Ch 4: 20, 31, 42
For Problem 42: Can find the data file on OnCourse,
and "brief report" means a paragraph or so

PS 3: due Thursday 9/19 by 3:00pm

Ch 5: 10, 20, 39, 50

Ch 15: 13, 52, 59
In 59, be as specific as possible
As always, if/when you use Minitab Express, include the graphic or output in your explanation of the solution

For Thursday 9/26

No problem set this week.
Problems on the new Chapters are contained in the Study Guide
Also, do the pre-exam reflection linked to on the Reading assignment page (required, counts toward HW)

PS 4: due Thursday 10/3 by 3:00pm

Ch 17: 11, 13, 16, 22, 38
In 20, SRS=simple random sample

PS 5: due Thursday 10/10 by 3:00pm

Ch 18: 7, 11, 17, 20, 38
For 17, comment on each -- what is wrong with most (or all) of
them? For 38, notice specific questions on top of right column

Ch 19: 14, 16, 19

As always, if/when you use Minitab Express, include the graphic or output in your explanation of the solution

PS 6: due Thursday 10/17 by 3:00pm

Ch 19: 31a-d
Ch 20: 29, 34, 36, 39

PS 7: due Thursday 10/24 by 3:00pm

Ch 20: 66, 70, 78
Ch 21: 13, 24, 26, 34
To clarify problem 13, the study used LFPR statistics from the same 19 randomly selected cities for both years
The .csv files containing the data for 20.66, 21.24, 21.26, and 21.34 are on OnCourse

PS 8: due Thursday 10/31 by 3:00pm

Ch 24: 5, 6, 10, 21, 22
For (10c), think of Tukey's multiple comparisons method rather than Bonferroni's. For 21 and 22, do part (d), it is not optional
The .csv files containing the data for 24.21 and 24.22 are on OnCourse

For Thursday 11/7

No problem set due Thursday because of exam that day
Problems on the new Chapters are contained in the Study Guide
Also prepare for the new Stats in the News portion of the exam (will be OnCourse, once it's ready)

PS 9: due Thursday 11/14 by 3:00pm

Ch 7: 16, 18, 20, 22, 73a-d
Ch 8: 19, 23abde, 45
The .csv files containing the data for 7.73, 8.23, and 8.45 are on OnCourse

Note: If you did not do Ch 6: 13, 19, 25, 27, 35 when studying for the exam, be sure to do them now, but there is no need to turn them in

PS 10: due Thursday 11/21 by 3:00pm

Ch 23: 23, 24, 25, 26, 29, 30

PS 11: due Thursday 12/5 by 3:00pm

Note that since this problem set covers an extra day of class, it's a little longer than usual

Ch 25: 11, 15, 22, 26
Ch 22: 11*, 12*, 19, 33(e)-(g), 35, 47

*For problems 22.11 and 22.12, combine the chi-square test of homogeneity and the chi-square test of independence into one option, so your choices are:
• χ2 goodness-of-fit test,
• χ^2 test of independence or homogeneity,
• or some other statistical test (and if so, name the test)

Janice Sklensky
Wheaton College
Department of Mathematics and Computer Science
SC 1306
Norton, Massachusetts 02766-0930
TEL (508) 286-3973
FAX (508) 285-8278
sklensky_janice@wheatoncollege.edu

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