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-   -   Confidence Interval Interpretations? (https://www.askmehelpdesk.com/showthread.php?t=646287)

  • Mar 26, 2012, 02:51 PM
    breepi
    Confidence Interval Interpretations?
    This is basic statistics, but my prof doesn't teach in a way that's easy for me to understand

    "Tire wear is often measured by the number of km until wearout. Below are the "distances until wearout" of a random sample of 15 radial tires of a particular brand. Assume the sample comes from a normal distribution.

    a) EStimate the mean number of kilometres until wearout for this brand of tire using a 95% confidence interval. Interpret the interval.

    I've found the mean - it's 56. I'm just confused as to how I'm supposed to "interpret" the interval - help would be greatly appreciated, and let me know if you need the list of tire data!

    Thanks so very much!

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