Chapter 7 Sampling Distributions - Part I(1).docx

# Chapter 7 Sampling Distributions - Part I(1).docx - OPRE...

• Homework Help
• minyiliu340591
• 3

This preview shows pages 1–3. Sign up to view the full content.

OPRE 3360 - Managerial Methods in Decision Making Under Uncertainty Chapter 7 Sampling & Sampling Distributions - Part I Name ___________________________________________ Net-ID__________________________ 1. The following data are from a simple random sample. 5, 8, 10, 7, 10, 14. A. What is the point estimate of the population mean? B. What is the point estimate of the population standard deviation? 2. A survey question for a sample of 150 individuals yielded 75 “Yes” responses, 55 “No” responses, and 20 “No Opinion” responses. A. What is the point estimate of the proportion in the population who respond “Yes”? B. What is the point estimate of the proportion in the population who respond “No”? 3. A population has a mean of 200 and a standard deviation of 50. Suppose a simple random sample of size 100 is selected and is used to estimate µ. x x A. What is the probability that the sample mean will be within plus or minus 5 of the population mean? B. What is the probability that the sample mean will be within plus or minus 10 of the population mean?

This preview has intentionally blurred sections. Sign up to view the full version.

This is the end of the preview. Sign up to access the rest of the document.
• Spring '14

{[ 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