Let's say that your average monthly charge is normally distributed with a mean of $500 and a standard deviation of $100. The credit card company will call anytime your purchases for the month exceed the 99th percentile. What is the dollar amount beyond which you will get a call from the credit card company?

asked by Stacy

8 years ago

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1 answer

http://davidmlane.com/hyperstat/z_table.html

answered by Damon

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Question

Let's say that your average monthly charge is normally distributed with a mean of $500 and a standard deviation of $100. The credit card company will call anytime your purchases for the month exceed the 99th percentile. What is the dollar amount beyond which you will get a call from the credit card company?

1 answer

http://davidmlane.com/hyperstat/z_table.html

Damon · Answer

http://davidmlane.com/hyperstat/z_table.html