Question

A random sample of size n=80 is taken from a population of size
N = 600 with a population proportion *p* = 0.46.

**What is the probability that the sample mean is less than
0.40?**

**Please provide an answer with 3 decimal
points.**

Answer #1

A random sample of size n = 75 is taken from a
population of size N = 650 with a population proportion
p = 0.60.
Is it necessary to apply the finite population correction
factor? Yes or No?
Calculate the expected value and the standard error of the
sample proportion. (Round "expected value" to 2 decimal
places and "standard error" to 4 decimal places.)
What is the probability that the sample proportion is less than
0.50? (Round “z” value to...

A random sample of size n=73 is taken from a population of size
n=749 with a population proportion p=0.59 n = 73, p = 0.59 a-1. Is
it necessary to apply the finite population correction factor? No
a-2. calculate the 1.expected value and the 2.standard
error of the sampling proportion
B. what is the probability that the sampling proportion is less
than 0.51?

a random sample of size n=73 is taken from a population of size
n=749 with a population proportion p=0.59. a-1. is it necessary to
apply the finite population correction factor? a-2. calculate the
1.expected value and the 2.standard error of the sampling
proportion. b. What is the probability that the sampling proportion
is less than 0.51?

A random sample of size n = 101 is taken from a
population of size N = 2,719 with a population proportion
of p = 0.67. [You may find it useful to reference
the z table.]
a-1. Is it necessary to apply the finite
population correction factor?
Yes
No
a-2. Calculate the expected value and the
standard error of the sample proportion. (Round "expected
value" to 2 decimal places and "standard error" to 4 decimal
places.)
b. What is the...

A random sample of size n = 80 is taken from a
population with mean μ = -15.2 and standard deviation σ = 5.
What is the probability that the sample mean falls between -15
and -14? (Do not round intermediate calculations. If you
use the z table, round "z" values to 2 decimal
places. Round your final answer to 4 decimal places.

A random sample of size n = 241 is taken from a
population of size N = 5,588 with mean μ = −68
and variance σ2 = 183. [You may find it
useful to reference the z table.]
a-1. Is it necessary to apply the finite
population correction factor?
Yes
No
a-2. Calculate the expected value and the standard
error of the sample mean. (Negative values should be
indicated by a minus sign. Round "standard error" to 2
decimal places.)...

A random sample of size n = 186 is taken from a
population of size N = 5,613 with mean μ = −65
and variance σ2 = 183. [You may find it
useful to reference the z table.]
a-1. Is it necessary to apply the finite
population correction factor?
Yes
No
a-2. Calculate the expected value and the standard
error of the sample mean. (Negative values should be
indicated by a minus sign. Round "standard error" to 2
decimal places.)...

A random sample of size n = 50 is selected from a
binomial distribution with population proportion
p = 0.8.
Describe the approximate shape of the sampling distribution of
p̂.
Calculate the mean and standard deviation (or standard error) of
the sampling distribution of p̂. (Round your standard
deviation to four decimal places.)
mean =
standard deviation =
Find the probability that the sample proportion p̂ is
less than 0.9. (Round your answer to four decimal places.)

A random sample of size 144 is taken from a population described
by the proportion p = 0.75. The probability that the sample
proportion is greater than 0.72 is ________.

A random sample of size 16 was taken from a normally distributed
population with a population mean 26 and a population standard
deviation 5.
Determine each of the following.
a) What range best describes P(X<24.10) ?
1. Less than 0.5
2. Greater than 0.5
3. Cannot be determined
b) What is P(Xˉ<24.1) ? Enter your response to at
least 3 decimal places.

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