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March 27, 2017

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The owner of a computer repair shop has determined that their daily revenue has mean $7200 and standard
deviation $1200. The daily revenue totals for the next 30 days will be monitored. What is the probability that
the mean daily revenue for the next 30 days will exceed $7000?

  • statistics - ,

    Z = (mean1 - mean2)/SEm

    SEm = SD/√n

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score.

  • statistics - ,

    Broooo put the answer aswell pleasee!

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