SOLUTION: I need help solving the following question with a calculator and how to put it in the calculator A company produces steel rods. The lengths of the steel rods are normally distri

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Question 1136475: I need help solving the following question with a calculator and how to put it in the calculator
A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 254.5-cm and a standard deviation of 1.7-cm. For shipment, 15 steel rods are bundled together.
Find the probability that the average length of a randomly selected bundle of steel rods is greater than 255.2-cm.
P(M > 255.2-cm) =
Enter your answer as a number accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
P%28M+%3E+255.2%29 =
first calculate Z score using given data

P%28M%3E166.2%29+=+P%28Z%3E1.59476%29≈0.0554