Test___Unit_3_Nov_16___V2___solutions

# Test___Unit_3_Nov_16___V2___solutions - Solutions to Test...

This preview shows page 1. Sign up to view the full content.

Solutions to Test – Unit 3 – V2 – Chapters 12 & 13 1. d 2. b 3. e 4. a 5. b 6. c 7. for complete answers, consult your text. But here are some common errors: (a) A simple random sample must provide not only the same chance for each member of the population to be chosen, but also each subset of size n must have an equal chance of being chosen. 8. there is no #8 9. there is no #9 10. (a) Take each digit as a roll of the die. If the random digit is 0, 7, 8, 9 ignore it. Otherwise, the random digit is the die roll. Keep taking numbers until you have encountered one of each of 1, 2, 3, 4, 5, and 6. Once they have all been encountered, stop; count the number of rolls. Determine the payout. Repeat, starting where you left off. (Or, stop after 15 rolls, since the game is essentially over at that point.) (c) The three trials result in 10 rolls, then 16 rolls, then more than 15 rolls. The payouts are \$10, \$0, and \$0. The average payout is \$3.33. To make the game fair, we must charge \$3.33 to play, based on these three trials. Of course, we should repeat this simulation hundreds or thousands of times to be more accurate.
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern