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Ryan
Ryan, Engineer
Category: Calculus and Above
Satisfied Customers: 8880
Experience:  B.S. in Civil Engineering
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The amount of time it takes to recover physiologically from a certain kind of sudden noise

Customer Question

The amount of time it takes to recover physiologically from a certain kind of sudden noise is found to be normally distributed with a mean of 80 seconds and a standard deviation of 10 seconds. Using the 50%–34%–14% figures, approximately what percentage of scores (on time to recover) will be:
Above 100?
Below 100?
Above 90?
Below 90?
Above 80?
Below 80?
Above 70?
Below 70?
Above 60?
Below 60?
Submitted: 1 year ago.
Category: Calculus and Above
Expert:  Ryan replied 1 year ago.
Hi,
Welcome! Thank you for using the site.
I'm sorry that this response was delayed. The expert that you initially requested is no longer available, but the system had the question locked for him for 15 minutes. I have replied as quickly as the computer system would allow me to.
Here are the solutions:
Solutions
Please feel free to ask if you have questions about any of the solutions.
Thanks,
Ryan