Normal percentile chapter 5 homework

Question Description

I need support with this Statistics question so I can learn better.

The average beginning annual salary for teachers in California is $41,181. Assume that this is a normal distribution with a standard deviation of $725. One quarter of starting teachers in California will make " at least"  much money per year? 

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Final Answer

mean =41181

sigma =725

z value for 25 percentile or first quartile is -0.67

Hence 41181-0.67*725=$40695.25

Answer : $40695.25or $40,696

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