Last Homework of the Quarter!

Tonight, please complete the problems below (in your textbook or on the handout provided in class)--our last homework assignment for the quarter!

Page 290: 11, 12, 13, 15, 27

**And since this is our last homework assignment of the quarter it's going to count double!**

Here's some more stuff to keep in mind....

• Stamps are due by the day of your exam! (but just get them in tomorrow!)
• Count up your stamps...twice (double check)
• Fasten them together/put them in an envelope/bag/something...
• Write your name and the total on the front
• Double check!
• I will randomly select 5 or 6 students per class and double check your count...if it's off you get a 0!
• There is an outline of the midterm exam topics under the "Classroom Powerpoints and Assignments" link on the right!
• Look over this list and identify your strengths and weaknesses!
• Then, use your Barron's book to review/practice the skills you need to work on!
• Use the table of contents to find specific topics!
• Then, use some practice exams in the back of the book to get ready for the AP Exam!
• Here's a list of the questions you can do for Practice Exam 1 in the back of your Barron's book:
• MC: 1,2, 3, 5, 6, 9, 10, 13, 16, 18, 19, 20, 21, 24, 25, 27, 28, 30, 31, 33, 34, 38, 40
• FR: 1
• You can also do the following from the free-response section of Practice Exam 2:
• 2, 3, 5

And lastly, here are the homework answers so you can check (of course they're also in the back of the book...)

• 11.) Parent Opinion, Part 1
• a. Voluntary Response Sample; 
• b. Cluster Sample (but not a good idea); 
• c. Attempted Census; 
• d. Stratified Sample
• 12.) Parent Opinion, Part 2
• a. Voluntary Response Sample; 
• b. Voluntary Response Sample (b/c only those who choose to attend will respond); 
• c. Cluster Sample (maybe multi-stage, if we consider each school a strata, then we consider a classroom within a school a cluster); 
• d. Systematic Sample
• 13.) Churches
• a. Multi-stage (start with cluster by randomly choosing 3 churches, but then SRS from each cluster that was selected); 
• b. If any of the 3 churches you pick are not representative of all churches, then your sample will not be representative of the population. Also, if we choose 100 people from each church, we may over-represent larger churches or under-represent smaller churches, and people from large/small churches may have differing views.
• 15.) Roller Coasters
• a. Systematic Sample
• b. This sample would not represent all people at the park (parkgoers). Since we only sampled people in line, we might over-represent people who do not mind waiting (as they clearly don't mind staying in line).
• 27.) Accounting
• a. Could use a simple random sample...
• Put the name/number of all 120 orders on a piece of paper...
• Put these names/numbers in a hat
• Mix up the papers (randomize).
• Select 10 papers and check those 10 transactions to see if they were processed properly.
• ORRRRR...
• Number each order from 001 - 120 (or 1 - 120).
• Use a random number generator to generate 10 random numbers from 1 - 120, ignoring repeated numbers.
• Check the 10 orders whose numbers were generated to see if they were processed properly.
• b. If we had wholesale and retail sales we should now use a stratified sample...
• Split the orders into strata--wholesale orders and retail orders
• Then, randomly select some number of wholesale and some number of retail orders (we want our sample to reflect the proportions of wholesale/retail orders amongst all 120 orders).