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A company produces steel rods. The lengths of the steel rods are normally distributed with a...

A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 96.1-cm and a standard deviation of 1.5-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 96.4-cm.
P(M > 96.4-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

math   Statistics-And-Probability   
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