# statistics

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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 -

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