Question

1/ A particular fruit's weights are normally distributed, with a
mean of 352 grams and a standard deviation of 28 grams.

If you pick 9 fruits at random, then 9% of the time, their mean
weight will be greater than how many grams?

Give your answer to the nearest gram.

2/A manufacturer knows that their items have a lengths that are
skewed right, with a mean of 7.5 inches, and standard deviation of
0.9 inches.

If 50 items are chosen at random, what is the probability that
their mean length is greater than 7.3 inches?

(Round answer to four decimal places)

3/A population of values has a normal distribution with
μ=117.8μ=117.8 and σ=83.5σ=83.5. You intend to draw a random sample
of size n=12n=12.

Find the probability that a single randomly selected value is less
than 91.3.

*P*(*X* < 91.3) = ........?

Find the probability that a sample of size n=12n=12 is randomly
selected with a mean less than 91.3.

*P*(*M* < 91.3) = ........?

Enter your answers as numbers accurate to 4 decimal places. Answers
obtained using exact *z*-scores or *z*-scores rounded
to 3 decimal places are accepted.

4/A population has parameters μ=162.8μ=162.8 and σ=3.7σ=3.7. You
intend to draw a random sample of size n=237n=237.

What is the mean of the distribution of sample means?

μ¯x=μx¯= .....

What is the standard deviation of the distribution of sample
means?

(Report answer accurate to 2 decimal places.)

σ¯x=σx¯= ....

Answer #1

1) A particular fruit's weights are normally distributed, with a
mean of 678 grams and a standard deviation of 28 grams. If you pick
3 fruits at random, then 6% of the time, their mean weight will be
greater than how many grams? Give your answer to the nearest
gram.
2)A population of values has a normal distribution with μ=190.6
and σ=4.4. You intend to draw a random sample of size n=147.
Find P75, which is the score separating the...

1. A particular fruit's weights are normally distributed, with a
mean of 601 grams and a standard deviation of 24 grams.
If you pick one fruit at random, what is the probability that it
will weigh between 562 grams and 610 grams.
2. A particular fruit's weights are normally
distributed, with a mean of 784 grams and a standard deviation of 9
grams.
The heaviest 7% of fruits weigh more than how many grams? Give your
answer to the nearest gram....

A particular fruit's weights are normally distributed, with a
mean of 276 grams and a standard deviation of 23 grams. If you pick
27 fruits at random, then 14% of the time, their mean weight will
be greater than how many grams? Give your answer to the nearest
gram. & Slices of pizza for a certain brand of pizza have a
mass that is approximately normally distributed with a mean of 66.1
grams and a standard deviation of 2.33 grams....

PART A: A particular fruit's weights are normally distributed,
with a mean of 451 grams and a standard deviation of 29 grams. The
heaviest 14% of fruits weigh more than how many grams? Give your
answer to the nearest gram.
B) Assume that z-scores are normally distributed with a
mean of 0 and a standard deviation of 1.
If P(−b<z<b)=0.4434P(-b<z<b)=0.4434, find
b.
C) A distribution of values is normal with a mean of 21.1 and a
standard deviation of 88.3....

1. A particular fruit's weights are normally distributed, with a
mean of 416 grams and a standard deviation of 11 grams.
The heaviest 17% of fruits weigh more than how many grams?
Give your answer to the nearest gram.
2. The patient recovery time from a particular surgical
procedure is normally distributed with a mean of 4 days and a
standard deviation of 1.9 days. Let X be the recovery time for a
randomly selected patient. Round all answers to...

A population of values has a distribution with μ=197.6 and
σ=24.6. You intend to draw a random sample of size n=19.
(a) What is the mean of the distribution of sample means?
μ¯x= ____?
(b) What is the standard deviation of the distribution of sample
means?
(Report answer accurate to 2 decimal places.)
σ¯x= ___ ?
(c) In a random sample of n=19, what is the probability that its
random sample mean is more than 197.5? Round to three decimal...

A particular fruit's weights are normally distributed, with a
mean of 228 grams and a standard deviation of 13 grams. If you pick
one fruit at random, what is the probability that it will weigh
between 207.2 grams and 218.9 grams?
(If you get two values that are the same, please regenerate the
problem or contact the instructor if you are unable to do so.)
Answer = (Round to four decimal places.)
Warning: Do not use the Z Normal Tables...they may...

A population of values has a distribution with μ=82.4μ=82.4 and
σ=23.7σ=23.7. You intend to draw a random sample of size
n=167n=167.
According to the Central Limit Theorem:
(a) What is the mean of the distribution of sample means?
μ¯x=
(b) What is the standard deviation of the distribution of sample
means?
(Report answer accurate to 2 decimal places.)
σ¯x=
(c) In a random sample of n=167, what is the probability that its
random sample mean is more than 83.9? Round...

A population has parameters μ = 208.3 and σ = 92.5 . You intend
to draw a random sample of size n = 116 .
What is the mean of the distribution of sample means? μ ¯ x
=
What is the standard deviation of the distribution of sample
means? (Report answer accurate to 2 decimal places.) σ ¯ x =

I dont understand this question 1 to 5
1) A particular fruit's weights are normally distributed, with a
mean of 668 grams and a standard deviation of 39 grams.
If you pick 24 fruits at random, then 7% of the time, their mean
weight will be greater than how many grams?
Give your answer to the nearest gram. _____
2)The lengths of pregnancies in a small rural village are
normally distributed with a mean of 265 days and a standard...

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