Introduction To Statistics And Data Analysis
Introduction To Statistics And Data Analysis
6th Edition
ISBN: 9781337793612
Author: PECK, Roxy.
Publisher: Cengage Learning,
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Chapter 8.1, Problem 4E

Consider a population consisting of the following five values, which represent the number of video downloads during the academic year for each of five housemates:

Chapter 8.1, Problem 4E, Consider a population consisting of the following five values, which represent the number of video

  1. a. Compute the mean of this population.
  2. b. Select a random sample of size 2 by writing the five numbers in this population on slips of paper, mixing them, and then selecting two. Calculate the mean for your sample.
  3. c. Repeatedly select random samples of size 2, and calculate the value for each sample until you have the values for 25 samples.
  4. d. Construct a density histogram using the 25 values. Are most of the values near the population mean? Do the values differ a lot from sample to sample, or do they tend to be similar? (Hint: See Example 8.1.)
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