SOLUTION: A company management team knows that, in a given quarter, the mean of earnings of firms in their industry is $200,000 with an industry standard deviation of $80,000. Assume a norma

Question 955693: A company management team knows that, in a given quarter, the mean of earnings of firms in their industry is $200,000 with an industry standard deviation of $80,000. Assume a normal distribution. What is the probability that a company makes between $225,000 and $275,000 ? Round your answer to 2 decimal places.

Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Find the z scores and the corresponding probabilities.

So then,

So,

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