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Statistics

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find z such that 5.2% of the standard normal curve lies to the left of z

  • Statistics - ,

    Use that table again.

  • Statistics - ,

    You have to do a reverse lookup on a standard distribution table to find the answers.
    Or, if you have excel, use the NORMSINV function.
    1. P(X≤z) = 0.052
    z = -1.626
    in Excel, the cell for your result has the formula =NORMSINV(0.052). easy. Or you can find your favorite z-table and find out. If your z-value table only has the values for z≥0, just find the value of z for P(X≤z) = 0.948, and you'll have -z.

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