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-   -   What is the z-score of a sample with n-size of 144 and a mean of 11 (https://www.askmehelpdesk.com/showthread.php?t=420453)

  • Nov 29, 2009, 06:32 PM
    lenw21
    What is the z-score of a sample with n-size of 144 and a mean of 11
    Hello, I am trying to solve this problem for my statistics homework.. I am stuck.. HELP!

    What is the z-score of a sample with n-size of 144 and a mean of 11;
    Standard Dev: 4
  • Dec 1, 2009, 08:05 AM
    Unknown008

    Somebody correct me if I'm wrong.

    Use the formula:

  • Dec 9, 2009, 02:13 AM
    morgaine300

    The equation is correct, but there is no z-score for what OP posted. A z score is how many standard deviations something is away from the mean. The mean is 11, but there is no "something." That is, the z-score of WHAT?

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