Sunday

March 29, 2015

March 29, 2015

Posted by **Nathan** on Sunday, June 8, 2014 at 1:50pm.

890

hours, with a standard deviation of

90

hours. Assuming that the lifetimes are normally distributed, complete the following statements.

- Math (?) -
**PsyDAG**, Sunday, June 8, 2014 at 2:57pmWhat statements? You cannot copy and paste here.

Just guessing:

Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions/probabilities related to your Z scores.

**Answer this Question**

**Related Questions**

statistics - A company produces batteries whose lifetimes are normally ...

Statistics - The lifetimes of batteries produced by a firm are known to be ...

adult education - The lifetimes of lightbulbs of a particular type are normally ...

statistics - Section 5.3: Normal Distributions: Finding Values Answer the ...

statistics - The lifetime of a 2 volt non- rechargeable battery has a normal ...

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 lifetimes of light bulbs of a particular type are normally ...

Statistics - The lifetimes of projector bulbs of a particular type are normally ...

maths - The lifetime in hours of a certain make of batteries follows a normal ...