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Past Exam for ECON 321 - ECON STAT with Hu at Maryland (UMD)

Exam Information

Material Type:Final
Professor:Hu
Class:ECON 321 - ECON STAT
Subject:Economics
University:University of Maryland
Term:--
Keywords:
  • Percent Error
  • The Independent
  • Determination
  • Explanation
  • Observations
  • Random Sample
  • High Temperatures
  • Independent Events
  • No Correlation
  • Coefficient of Determination
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) Economics '21 KWF 12:00 - 12:50 PH FINAL EXAM Spring 1987 Dr. Arun Halik The exam is divided into 5 sections. Skim the various sections to see how points are allocated before you begin answering questions. Some questions have several parts to them. These parts don't always depend on each other. So even if you can't answer the first part of a question you may be able to answer later parts. Don't give up on a question just because you can't answer part of it., As usual, if you want partial credit, show all your work. For some problems, diagrams may be helpful. Read questions carefully and answer them as clearly and precisBly as you can. Probability tables are attached. GOOD LUCK! SECTION 1. (15 pcdnts) (3 points eacb). 1. Briefly expl~lin the difference between a parameter and a statistic. 2. What is a simple random sample? 3. What is a stratified random sample? 4. What is the sampling distribution of a statistic? (Just define thE~ term sampling distribution.) ...

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