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Past Exam for MATH 2300 - Statistical Methods at Texas Tech (TTU)

Exam Information

Material Type:Exam
Professor:Staff
Class:MATH 2300 - Statistical Methods
Subject:MATHEMATICS
University:Texas Tech University
Term: 2004
Keywords:
  • Following Calculations
  • Assumptions
  • The Independent
  • Observation
  • Exclusive Or
  • Distribution
  • Probabilities
  • Following List
  • Middle School
  • Sample Correlation
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Sample Document Text

MATH 2300 { Sample Final Exam { Summer 2005 Show all the details leading to the solution of a problem, and explain your answers. Use enough signiflcant decimal digits so that you get a precise answer. All problems are weighted equally. 1. Consider the following data: 11 20 62 61 7 4 5 25 24 32 12 21 2 2 34 31 45 55 56 44 11 11 12 33 35 3 4 14 24 54 (a) Construct a stem-and-leaf diagram of the above data. Using the plot, flnd the median, the quartiles, the interquartile range, and the range of the data. (b) Construct a histogram of the above data. 2. A data set consists of the following observations: 2;3;3;2;4;9;9;9;2;2: (a) Find the sample standard deviation. (b) Find the sample median, the flrst quartile, and the third quartile. (c) Find the sample range and the sample interquartile range. (d) Construct a boxplot of the above data. 3. Suppose that a student's math score X from next year's Graduate Record Exam can be considered as an observation from a normal population having mean 46...

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