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  • Oct 7, 2007, 06:46 PM
    zqueez
    Sample Size
    [F]The following population of N=4 values is to be sampled by using a sample size of n=2: 3, 7,6,9.

    a. If sampling is done without replacement, how many different samples could be obtained?

    b. Determine the value of X for each of the samples.

    c. Find the sampling distribution of X and graph the results.

    3. Determine the mean of the population. Compare the population mean to the sample means. What is the probability of selecting a sample that provides an exact estimate of the population mean?
  • Oct 9, 2007, 08:28 AM
    galactus
    For the first part, how many ways can you choose 2 items out of 4?
    You should be able to list them out. There aren't that many.

    Then find the average of those samples.

    Find the average of the 4 and compare your results from part 2.

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