Stat 2000: Assignment 10 Tips (Distance/Online Sections)
Published: Fri, 03/22/13
My tips for Assignment 10 are coming below, but first a couple of announcements.
Please note that my final exam seminar for
Stat 2000 is now scheduled and I am taking registrations. I have split the seminar into two days since we will have to cover Lesson 6 in
Volume 1 as well as all of Volume 2. The seminar is from 9:00 am
to 6:00 pm each day in room 100 St. Paul's College. 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).
Day One is Easter Sunday, March 31 and Day Two 2
weeks later on Sunday, April 14.
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 9?
Tips for Assignment 10 (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 7 in my book, if you have it, to prepare for this assignment.
Questions 1 to 4 are
Lesson 7 stuff, and I am confident you will have no problem doing them
once you study the lesson. You may want to review how to interpret a
confidence interval in Lesson 1 of my book (remember, though, that
these
are confidence intervals for proportions or the difference between
proportions, not means), and review how to interpret a P-value in
Lesson
2 of my book (again keeping in mind you are hypothesizing about
proportions, not means). Note that, by LCL and UCL, they mean,
respectively, Lower Confidence Limit and Upper Confidence Limit. Which
is to say, they want the lower and upper limits of your confidence
interval. As I discuss in question 1 of my lesson, make sure you can
tell the difference between being asked for the mean of X and the mean
of p-hat, the sample proportion.
Question 2 is very similar to my question 1 parts (c) and (d). Question 2(c)
requires an alpha/beta table. Re-read the section called "Errors in
Hypothesis Testing Revisited" in Lesson 6 (my Stats 2 book, volume 1). However, you will use a p-hat bell
curve, as taught in Lesson 7, to find the appropriate probability.
Question 4 requests interpretations of your
P-value and confidence interval. Re-read the appropriate sections of
Lesson 1 and Lesson 2 of my book, but remember that this is about the
difference in proportions, not the mean.