F2010_practice_exam2 (1)

# F2010_practice_exam2 (1) - STAT 350 Practice Exam 2 This is...

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STAT 350 Practice Exam 2 This is a closed book exam. You are allowed to bring a calculator and one page formula sheet. There are 4 problems, with point values as shown. DO NOT open or start this exam until instructed to do so. Before handing the exam in, write your name in the space provided at the bottom of the first sheet. You may use the backs of sheets and the blank space after the question to display your solution. Make sure that you label all parts of your work so that a grader can read the solution clearly. You need to explain all of your work including your answers. You may use a calculator, but you may NOT share calculators. No books or notes of any kind are allowed. If you have a question, raise your hand. Name: 1

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1. (20 pts) Suppose 40% of the US population have O blood. Suppose a random sample of 5 people is to be chosen and their blood type examined. Let ˆ p represent the sample proportion of people with O blood.
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• Fall '08
• Brewster,R

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