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Thread: Confidence interval-population standard deviation unknown

  1. April 4th 2008, 09:00 AM #1
    Gail
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    Unhappy Confidence interval-population standard deviation unknown

    Help!!!! I have struggled over this math problem for two days now!

    The amounts of juice (in ounces) in 8 randomly selected juice bottles are:

    15.8, 15.1, 15.1, 15.6, 15.6, 15.3, 15.2, 15.4

    Find a 98 percent confidence interval for the population standard deviation.
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  2. April 4th 2008, 10:39 AM #2
    mathceleb
    mathceleb is offline
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    Posted my answer here:

    http://www.mathhelpforum.com/math-he...tml#post124726
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