Posted by **Gee** on Monday, September 3, 2012 at 6:38pm.

The lifetime of a 2 volt non-rechargeable battery has a normal distribution with a mean of 516 hours and a standard deviation of 20 hours. What is the z- score for batteries with lifetimes of 520 hours

## Answer This Question

## Related Questions

- statistics - The lifetime of a 2 volt non- rechargeable battery has a normal ...
- statistics - The lifetime of a 2- volt non- rechargeable battery in constant use...
- statistics - The lifetime of a 2- volt non-rechargeable battery in constant use ...
- statistics - The lifetime of a 2-volt non-rechargeable battery in constant use ...
- Statistics - The lifetime of a 2-volt non-rechargeable battery in contant use ...
- Statistics - The lifetime of a 2-volt non-rechargeable battery in contant use ...
- Statistics - The lifetime of a certain smart phone battery has an unknown ...
- Statistics - The lifetime of a certain smart phone battery has an unknown ...
- maths - The lifetime in hours of a certain make of batteries follows a normal ...
- statistics - A company produces batteries whose lifetimes are normally ...

More Related Questions