Stat 2000: Assignment 9 Tips (Distance/Online Sections)
Published: Wed, 03/13/13
My tips for Assignment 9 are coming below, but first a couple of announcements.
Please note that I am planning on splitting my final exam seminar for
Stat 2000 into two days since we will have to cover Lesson 6 in
Volume 1 as well as all of Volume 2. The plan is to meet from 9:00 am
to 6:00 pm each day. Each day will cost $40 or, if you attend Day One,
you can attend Day Two for half-price (you will pay a total of $60, in
other words).
I plan to teach Day One on Easter Sunday, March 31 and Day Two 2
weeks later on Sunday, April 14. I will send more details and start
taking registrations once everything is finalized next week.
Did you read my Tips on How to Do Well in this Course?
Make sure you do: Tips on How to Do Well in Stat 2000
Did you read my Tips on what kind of calculator you should get?
Did you miss my Tips for Assignment 8?
Tips for Assignment 9 (Distance/Online Sections D01, D02, D03, etc.)
Don't have my book? You can download a free sample containing Lesson 3 at my website here:
Study Lesson 6 (Discrete Probability Distributions including Binomial and Poisson) in my study book to prepare for this assignment.
Those of you with an older edition will study Lessons 6 and 7 (and
really only study about the first two questions of Lesson 6, then move
on to Lesson 7: The Binomial and Poisson Distributions).
Note, in question 1,
for a situation to be binomial, you must be able to
list the parameters
n and p (which is to say there must be a fixed number of trials, n, and
the chance of "success" on each trial must be constant, p). In
addition, X must be able to have values 0, 1, 2, ... n
where X is counting the number of "successes".
For a situation to be
Poisson, you must be able to list the parameter λ, the average number of "things", and
X must be able to have values 0, 1, 2, all the way to infinity, where X
is counting the number of "things" for which you have the
average rate.
Question 2 is standard binomial stuff. Take
a look at my "seeds germinating" question for an example of how to use
Table C if your p is not already on the table. Note, in part (e), when
they ask for the probability that X is within one standard deviation of
the mean, remember that X = 0, 1, 2, ... n. Which X value in that list
is nearest the mean value that you computed in part (c)? Which other
values in that list are within one standard deviation of that mean
value? Find the probability X can take on those values.
Question 3 is more binomial stuff. You have to use the Normal Approximation method as taught in my lesson to solve part (e).
Questions 4 and 5 are pretty standard Poisson distribution questions as taught in my book.
Question 6 is
actually a Sign Test question (taught in Lesson 11 of my book). This is just a binomial question where, to get
the P-value, find the probability of the given X value or higher.