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Homework Help: State null and alternative hypothesis for 2-sample t-test

  1. Aug 7, 2012 #1
    1. The problem statement, all variables and given/known data

    A new type of medical tubing is being developed by company ABC. The development engineer would like to test whether the tube has better elongation than the competitor's design.

    State the hypotheses that should be tested in this experiment

    3. The attempt at a solution

    Ho: The new tubing has the same elongation or worse than competitor's design
    μ1 ≤ μ2

    Ha: The new tubing has better elongation than competitor's design (claim)
    μ1 > μ2

    i got this wrong, can't figure out why
  2. jcsd
  3. Aug 7, 2012 #2


    Staff: Mentor

    Seems OK to me.
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