Question

1. Pregancy length in humans is Normally distributed with mean 266 days and standard deviation 16 days.

(a) Find the probability that a pregnancy lasts more than 280 days.

(b) Find the probability that a pregnancy lasts less than 37 weeks.

(c) Find the probability that a pregnancy lasts between 250 and 270 days.

(d) If the pregancy will be induced at the 290th day, what is the probability that the birth will happen between 266 days and the induction day?

(e) Find the probability that a birth will happen within the next week if the baby has not arrived at 280 days.

(f) The population interquartile range is defined as the difference between the 25th and 75th percentiles of the distribution of pregnancy lengths. Find its value. (g) If the pregnancy is considered to be late if it is among the 5% longest of all pregancies, how long does a pregnancy have to be before it is considered to be late?

Answer #1

The lengths of pregnancies are normally distributed with a mean
of 266 days and a standard deviation of 15 days. a. Find the
probability of a pregnancy lasting 307 days or longer. b. If the
length of pregnancy is in the lowest 44%,then the baby is
premature. Find the length that separates premature babies from
those who are not premature.
a. The probability that a pregnancy will last 307 days or longer
is [ ]. (Round to four decimal places)...

The lengths of pregnancies are normally distributed with a mean
of 266 days and a standard deviation of 15 days. a. Find the
probability of a pregnancy lasting 309 days or longer. b. If the
length of pregnancy is in the lowest 4 %, then the baby is
premature. Find the length that separates premature babies from
those who are not premature.

The lengths of pregnancies are normally distributed with a mean
of 266 days and a standard deviation of 15 days. a) Find the
probability of a pregnancy lasting 307 days or longer. b) If the
length of pregnancy is in the lowest 44%, then the baby is
premature. Find the length that separates premature babies from
those who are not premature.

The lengths of pregnancies are normally distributed with a mean
of 266 days and a standard deviation of 15 days. a. Find the
probability of a pregnancy lasting 308 days or longer. b. If the
length of pregnancy is in the lowest 3 %, then the baby is
premature. Find the length that separates premature babies from
those who are not premature. Click to view page 1 of the table.
LOADING... Click to view page 2 of the table. LOADING......

the lengths of pregnancies are normally distributed with a mean
of 266 days and a standard deviation of 15 days. if 36 women are
randomly selected, find the probability that they have a mean
pregnancy between 266 days and 268 days

The lengths of human pregnancies are normally distributed
with
muμequals=266
days and
sigmaσequals=16
days. Complete parts (a) and (b)
below.
(a) The following figure represents the normal curve with
mu equals 266μ=266
days and
sigmaσequals=1616
days. The area to the
leftleft
of
Upper X equals 235X=235
is
0.02630.0263.
Provide an interpretation of this area. Choose the correct answer
below. A.The proportion of human pregnancies that last
lessless
than
235235
days is
0.97370.9737.
B.The proportion of human pregnancies that last
moremore...

Pregnancy lengths are normally distributed with a mean of 280
days and a standard deviation of 20 days. Find the probability that
if a sample of 50 pregnancies are chosen at random that the mean
length is less than 270 days.

1. Assume that the lengths of human pregnancies are normally
distributed with a mean of 266 days and a standard deviation of 16
days.
A. Determine the probability that a randomly selected pregnancy
lasts between 252 and 273 days.
B. If a random sample of 20 pregnancies is selected, determine
the probability that the sample mean will fall between 252 and 273
days.

Lengths of pregnancies are normally distributed with a mean of
268 days and a standard deviation of 15 days, find the probability
of a pregnancy lasting between 250 and 280 days, find the
probability of a pregnancy lasting longer than 285 days, find the
number that represents the 95% percentile

The lengths of pregnancies are normally distributed with a mean
of 270 days and a standard deviation of 15 days. a. Find the
probability of a pregnancy lasting 309 days or longer. b. If the
length of pregnancy is in the lowest 22%, then the baby is
premature. Find the length that separates premature babies from
those who are not premature.

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 23 minutes ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago