Posted by **Maria** on Saturday, February 13, 2010 at 11:20am.

If the life in years, of a television set is normally distributed with a mean of 46 years and a standard deviation of 4 years, what should be the guarantee period if the company wants less than 3% of the television sets to fail while under warranty?

- Finite Math -
**drwls**, Saturday, February 13, 2010 at 12:07pm
That would be about two sigma less than the mean, but did you really mean 46 years mean life? No one keeps a TV set that long, nor is there accurate lifetime data available.

- Finite Math -
**Maria**, Saturday, February 13, 2010 at 2:48pm
I know but that's what the question asked.

Thanks

- Finite Math -
**drwls**, Saturday, February 13, 2010 at 3:38pm
In that case, 97% will last longer than 38 years.

## Answer This Question

## Related Questions

- Math - Need help with word problem. In the life, inyears of a television set ...
- statistik - can you show me the calculation ;) The life expectancy of computer ...
- college - Assume that the life expectancy of U.S. males is normally distributed ...
- Business Stats - The average life expectancy of Canadian women is 75 years, and ...
- Statistics - . A certain company makes 12-volt car batteries. After many years ...
- math - The life span of a DVD player produced by one major company is known to ...
- statistics - 5) The lifetime of a medical device s a normally distributed rv ...
- probability - 1. The time it takes a student to cycle to school is normally ...
- statistics - At a large publishing company, the mean age of proofreaders is 36.2...
- statistics - the life expectancy of lung cancer patient treated with a new drug ...

More Related Questions