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 170.1-cm and a standard
deviation of 1.5-cm. For shipment, 16 steel rods are bundled
together. Find the probability that the average length of the rods
in a randomly selected bundle is between 169.8-cm and 170-cm.
P(169.8-cm < ¯¯¯ X < 170-cm) = Round to 4 decimal places.
Answers obtained using exact z-scores or z-scores rounded to 2
decimal places are accepted.

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