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Past Exam for MATH 3342 - Mathematical Statistics for Engineers and Scientists at Texas Tech (TTU)

Exam Information

Material Type:Exam 1
Professor:Staff
Class:MATH 3342 - Mathematical Statistics for Engineers and Scientists
Subject:MATHEMATICS
University:Texas Tech University
Term: 2004
Keywords:
  • Frequency Distribution
  • Stockholder
  • Problem Statements
  • Separate Paper
  • Cumulative Frequency
  • Class Intervals
  • Performance
  • Relevant Steps
  • Distribution
  • Probabilities
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Sample Document Text

Math 3342-001 Exam I July 14, 2004 Answer the problems on separate paper. You do not need to rewrite the problem statements on your answer sheets. Do your own work. Show all relevant steps which lead to your solutions. Attach this question sheet to the front of your answer sheets. 1. (22 pts) The following are 14 measurements on the strength (pounds) of paper to be used in cardboard tubes: 21, 28, 29, 32, 35, 33, 27, 25, 31, 25, 18, 14, 20, 28 Find the following (if they exist) for the above measurements: a. mean b. median c. mode d. standard deviation e. Q1 f. Q3 g. range Construct the following for the above measurements: h. dot diagram j. box-whisker plot 2. (30 pts) In a 2-week study of productivity of workers, the following data were obtained on the total number of acceptable pieces which 50 workers produced: 65 36 49 84 79 56 28 43 67 36 43 78 37 40 68 72 55 62 22 82 88 50 60 56 57 46 39 57 73 65 59 48 76 74 70 51 40 75 56 45 35 62 52 63 32 80 64 53 74 34 a. Construct a frequency ...

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