Question

A company produces steel rods. The lengths of the steel rods are
normally distributed with a mean of 252.7-cm and a standard
deviation of 2.4-cm. For shipment, 9 steel rods are bundled
together.

Find *P*_{82}, which is the average length
separating the smallest 82% bundles from the largest 18%
bundles.

*P*_{82} = -cm

Enter your answer as a number accurate to 2 decimal place. Answers
obtained using exact *z*-scores or *z*-scores rounded
to 3 decimal places are accepted.

Answer #1

A company produces steel rods. The lengths of the steel rods are
normally distributed with a mean of 197.5-cm and a standard
deviation of 2-cm. For shipment, 6 steel rods are bundled
together.
Find P11, which is the average length separating the smallest
11% bundles from the largest 89% bundles.
P11 =______________ -cm
Enter your answer as a number accurate to 2 decimal place.
Answers obtained using exact z-scores or z-scores rounded to 3
decimal places are accepted.

A company produces steel rods. The lengths of the steel rods are
normally distributed with a mean of 179.5-cm and a standard
deviation of 0.7-cm. For shipment, 20 steel rods are bundled
together.
Find P95, which is the average length
separating the smallest 95% bundles from the largest 5%
bundles.
P95 = -cm
Enter your answer as a number accurate to 2 decimal place. Answers
obtained using exact z-scores or z-scores rounded
to 3 decimal places are accepted.

A company produces steel rods. The lengths of the steel rods are
normally distributed with a mean of 216.5-cm and a standard
deviation of 2.3-cm. For shipment, 24 steel rods are bundled
together.
Find P15, which is the average length
separating the smallest 15% bundles from the largest 85%
bundles.
P15 = -cm
Enter your answer as a number accurate to 2 decimal place. Answers
obtained using exact z-scores or z-scores rounded
to 3 decimal places are accepted.

A company produces steel rods. The lengths of the steel rods are
normally distributed with a mean of 215.6-cm and a standard
deviation of 2.4-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 between 215-cm and 216.5-cm.
P(215-cm < M < 216.5-cm) =
Enter your answer as a number accurate to 4 decimal places. Answers
obtained using exact z-scores or z-scores rounded
to 3...

A company produces steel rods. The lengths of the steel rods are
normally distributed with a mean of 179-cm and a standard deviation
of 2.4-cm. For shipment, 12 steel rods are bundled together.
Find the probability that the average length of a randomly selected
bundle of steel rods is less than 177.8-cm.
P(M < 177.8-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...

A company produces steel rods. The lengths of the steel rods are
normally distributed with a mean of 225.1-cm and a standard
deviation of 1.3-cm. For shipment, 10 steel rods are bundled
together. Find P95, which is the average length separating the
smallest 95% bundles from the largest 5% bundles. P95 = _____-cm
Enter your answer as a number accurate to 2 decimal place.

A company produces steel rods. The lengths of the steel rods are
normally distributed with a mean of 207.9-cm and a standard
deviation of 1.5-cm. For shipment, 26 steel rods are bundled
together.
Find P26,
which is the average length separating the smallest 26% bundles
from the largest 74% bundles.

A company produces steel rods. The lengths of the steel rods are
normally distributed with a mean of 237.4-cm and a standard
deviation of 1.6-cm. For shipment, 6 steel rods are bundled
together.
Find the probability that the average length of a randomly selected
bundle of steel rods is between 237.5-cm and 239.1-cm.
P(237.5-cm < M < 239.1-cm) =
Enter your answer as a number accurate to 4 decimal places. Answers
obtained using exact z-scores or z-scores rounded
to 3...

A company produces steel rods. The lengths of the steel rods are
normally distributed with a mean of 246.7-cm and a standard
deviation of 0.8-cm. For shipment, 23 steel rods are bundled
together.
Find the probability that the average length of a randomly selected
bundle of steel rods is greater than 246.6-cm.
P(M > 246.6-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...

A company produces steel rods. The lengths of the steel rods are
normally distributed with a mean of 122.8-cm and a standard
deviation of 0.6-cm. For shipment, 6 steel rods are bundled
together.
Find the probability that the average length of a randomly selected
bundle of steel rods is less than 122.7-cm.
P(M < 122.7-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...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 13 minutes ago

asked 24 minutes ago

asked 26 minutes ago

asked 28 minutes ago

asked 30 minutes ago

asked 34 minutes ago

asked 43 minutes ago

asked 53 minutes ago

asked 59 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago