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suter [353]
3 years ago
14

Please help me with this

Mathematics
2 answers:
valina [46]3 years ago
6 0

Answer:

i think your answer is J

Step-by-step explanation:

hope this helped

weeeeeb [17]3 years ago
5 0
You’re answer is G!
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Explanation:


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\text{z-score} =  \frac{x - \mu}{\sigma}

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t = \text{time for the auditor to finish his work } = 720 \text{ seconds}&#10;\\ \mu = \text{average time for the auditor to finish his work } = 600 \text{ seconds}&#10;\\ \sigma = \text{standard deviation } = 100 \text{ seconds}

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\text{z-score} = \frac{x - \mu}{\sigma}&#10;\\&#10;\\ \text{z-score} = \frac{720 - 600}{100}&#10;\\&#10;\\ \boxed{\text{z-score} = 1.2}

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t = time for the auditor to finish his work
z = z-score of time t

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P(t \ \textgreater \  720) &#10;\\ = P(z \ \textgreater \  1.2)&#10;\\ = 1 - P(z \leq 1.2)&#10;\\ = 1 - 0.885&#10;\\  \boxed{P(t \ \textgreater \  720)  = 0.115}

Hence, there is 11.5% chance that the auditor will spend more than 12 minutes in an invoice. 
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P.S: Please give me brainiest answer
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