Math119Quiz3S11

Math119Quiz3S11 - Math 119 Name: _ QUIZ 3 (CHAPTER 6) MATH...

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Math 119 Name: ________________________ QUIZ 3 (CHAPTER 6) MATH 119 – SPRING 2011 – KUNIYUKI 105 POINTS TOTAL, BUT 100 POINTS = 100% Show all work, simplify as appropriate, and use “good form and procedure” (as in class). Box in your final answers! No notes or books allowed. A scientific calculator is allowed. You may detach the attached tables and write on them, but turn them in with your test. Nothing you write on the tables will be graded. Round off z scores to 2 decimal places; otherwise, write exact answers or round off calculations to at least four decimal places or at least four significant digits, whichever is more convenient. 1) (2 points). What is the standard deviation of the standard normal distribution? 2) (3 points). One million people have taken a particular standardized test. The distribution of test scores has mean 75 points and standard deviation 6 points. We will draw a random sample of 50 people who took the test and analyze their scores. Which of the following statements is true, based on the Central Limit
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Math119Quiz3S11 - Math 119 Name: _ QUIZ 3 (CHAPTER 6) MATH...

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