MAT 1272 Statistics, SP2014

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  • #13733

    Ezra Halleck
    Participant

    The height of a female black bear is normally distributed with a mean of 26 inches and standard deviation of 2.5 inches. If a female bears is selected at random, what is the probability that her average height is
    a. below 22 inches?
    b. between 24 and 28 inches?
    Note: you must draw separate pictures for each part to get credit!

    Remember that this topic will not be on Exam 2. Instead there will be one problem from exam 1.

    #17855

    Crystal
    Participant

    a)
    µ = 26
    σ = 2.5
    x = < 22 z = x – µ = 22 – 26
    ___ ______ = – 1.6
    σ 2.5

    z = .1446

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