# Problems and Exercises

All Problems are from the book Seeing Through Statistics by Jessica Utts unless otherwise marked.
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Notation: 	n	manditory problem

Do it and write up a nice solution to be graded.

(n)	helper problem

These are problems that you do not need to turn in,
but may be helpful with other problems. It may be
similar to another problem and have a solution in
the book, to it may be an easier problem of the same
general type, etc.
You might want to look these over as you come to them,
but if you are convinced that you could do the problem,
just move on to the next one.  The material from
these problems will be covered in other problems.

{n} 	thought propblem

These problems raise interesting issues to think about
and we may discuss some of these in class as well.
You should spend some time thinking about them, but
you are not required to turn in a response.  You
might like to jot down a few notes, however, in case
we discuss the issue in class.  You should be prepared
to express a thoughtful  opinion.

This might be extra practice (good review for tests)
or simply a problem that you should know how to do
but which you do not have to write up for grading.
You are responsible for the material in these problems,
and the material may or may not be covered in other
problems.

Bracketed problems do not have to be turned in.

Chap	Prob	Description/Notes
====	====	=================

Homework 1:

1	14	where could you use statistics?
17	does meditation reduce blood preasure?

2	5	identify variables
7	data = numbers?
8	design of heartbeat study
{9,11}	when should disclosure occur?
10	nocotine patches (which version is more compelling?)
16	NordicTrack and weight loss

MP 1or3 7 critical components in a news or journal report
[bring an unmarked copy of article to class]

3	(1-3)	examples of survey questions
6	categorical or measurement
7	discrete or continuous
8,10	valid, reliable
(13,15) biasing questions
16	anonymous, confidential
(20)	discrete, continuous
21	valid, reliable

Surveys
Administer survey 1 to 2-4 people

Administer survey 2 to 5-10 people (using randomness as described in
class)

Keep the data you collect separate from your other homework and
be prepared to report on it in class.

Homework 2:

3	MP 2	design a biased question and test it out
[be prepared to report in class]

4	1	types of sampling plans
7	identify population and sample
9	survey or experiment?
{11}	quota sampling
12,13	volunteer sample, volunteer response
17 	type of study
20	survey of food magazine readers
21-22	suveys based on college directory
{23}	why conduct a national census?

5	2	blindness and blocking
3	explanatory and response variable
5	do birds remember color?
{6}	cell phones and cancer
7	confounding or interacting?
8-10	problems with studies
(12)	money spent on clothes by sex
13	role of variables
{17}	study vs experiment
{19}	components of experiments and why used
(22),23	difficulties and disasters

MP 3or4	find article about study or experiment

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