Question

Please explain. I keep working this problem and getting the wrong answer

Determine if the finite correction factor should be used. If so, use it in your calculations when you find the probability. In a sample of 800 gas stations, the mean price for regular gasoline at the pump was $ 2.843 per gallon and the standard deviation was $0.009 per gallon. A random sample of size 50 is drawn from this population. What is the probability that the mean price per gallon is less than $2.842 ? The probability that the mean price per gallon is less than $2.842 is

Answer #1

**The probability that the mean price per gallon is
less than $2.842 is
**

Determine if the finite correction factor should be used. If
so, use it in your calculations when you find the probability. In a
sample of 700 gas stations, the mean price for regular gasoline at
the pump was $2.863 per gallon and the standard deviation was
0.009 per gallon. A random sample of size 45 is drawn from this
population. What is the probability that the mean price per gallon
is less than 2.859?

Determine if the finite correction factor should be used. If
so, use it in your calculations when you find the
probability.
In a sample of
700
gas stations, the mean price for regular gasoline at the pump
was
$ 2.881
per gallon and the standard deviation was
$0.009
per gallon. A random sample of size
55
is drawn from this population. What is the probability that the
mean price per gallon is less than
$2.879?
The probability that the mean...

Determine if the finite correction factor should be used. If
so, use it in your calculations when you find the probability. In a
sample of 800 gas stations, the mean price for regular gasoline at
the pump was $ 2.876 per gallon and the standard deviation was
$0.008 per gallon. A random sample of size 45 is drawn from this
population. What is the probability that the mean price per gallon
is less than $2.872? The probability that the mean...

Determine if the finite correction factor should be used. If so,
use it in your calculations when you find the probability. In a
sample of 900 gas stations, the mean price for regular gasoline at
the pump was $2.884 per gallon and the standard deviation was 0.008
per gallon. A random sample of size 50 is drawn from the
population. What is the probability that the mean price per gallon
is less than$2.883?

3. A company that supplies gasoline nationwide reports that the
average price per gallon of regular gasoline is $ 8,150, with a
standard deviation of $ 428. There are 750 gasoline stations in the
country. Suppose a random sample from 40 gas stations is
selected.
b. What is the mean or expected value of the sample distribution
of the means?
c. What is the standard error of the sample distribution of the
means?
d. Write the syntax for the sample...

During a certain week (many years ago) the mean price of
gasoline in California was $2.024 per gallon with a standard
deviation of $0.053. A random sample of 47 gas stations was drawn
from this population. What is the probability that the mean price
of this sample was more than $2.042? Show your work.
Probability = nothing (round answer to four decimal
places)

Find the probability and interpret the results. If convenient,
use technology to find the probability. During a certain week the
mean price of gasoline was $2.717 per gallon. A random sample of
32 gas stations is drawn from this population. What is the
probability that the mean price for the sample was between $2.69
and $2.72 that week? Assume σ equals=$0.047. The probability
that the sample mean was between $2.696 and $2.728 is

Find the probability and interpret the results. If convenient,
use technology to find the probability. During a certain week the
mean price of gasoline was $2.704 per gallon. A random sample of
37 gas stations is drawn from this population. What is the
probability that the mean price for the sample was between $2.691
and $2.727 that week? Assume sigmaequals$0.05.The probability
that the sample mean was between $2.691 and $2.727 is ____

I keep getting the z score wrong on this question? Please
advise
According to a recent census,17% of the people in the United
States are of Hispanic origin. One county supervisor believes her
county has a different proportion of Hispanic people than the
nation as a whole. She looks at their most recent survey data,
which was a random sample of 493 county residents, and found that
50 of those surveyed are of Hispanic origin.

During a certain week the mean price of gasoline in New York
City was $3.75 per gallon with the standard deviation of $0.43.
Assume the variable is normally distributed.
A) If a gas station is randomly selected from this city what is
the probability that the price is less than $3.89 that week? Write
your answers with four decimal places.
B) If a gas station is randomly selected from this city what is
the probability that the price is more...

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