Question
In: Statistics and Probability
A population has a mean of 200 and a standard deviation of 60. Suppose a sample...
A population has a mean of 200 and a standard deviation of 60. Suppose a sample of size 100 is selected and is used to estimate . Use z-table.
- What is the probability that the sample mean will be within +/-
4 of the population mean (to 4 decimals)? (Round z value
in intermediate calculations to 2 decimal places.)
- What is the probability that the sample mean will be within +/-
17 of the population mean (to 4 decimals)? (Round z value
in intermediate calculations to 2 decimal places.)
Solutions
Expert Solution
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orchestra answered 2 years agoRelated Solutions
A population has a mean of 200 and a standard deviation of 60. Suppose a sample...
A population has a mean of 200 and a standard deviation of 60.
Suppose a sample of size 100 is selected and is used to estimate .
Use z-table.
What is the probability that the sample mean will be within +/-
6 of the population mean (to 4 decimals)? (Round z value in
intermediate calculations to 2 decimal places.)
What is the probability that the sample mean will be within +/-
17 of the population mean (to 4 decimals)? (Round...
A population has a mean of 400 and a standard deviation of 60. Suppose a sample...
A population has a mean of 400 and a standard deviation of 60.
Suppose a sample of size 125 is selected and is used to
estimate . Use z-table.
What is the probability that the sample mean will be within +/-
4 of the population mean (to 4 decimals)? (Round z value
in intermediate calculations to 2 decimal places.)
What is the probability that the sample mean will be within +/-
15 of the population mean (to 4 decimals)? (Round z...
A population has a mean of 200 and a standard deviation of 70. Suppose a sample...
A population has a mean of 200 and a standard deviation of 70.
Suppose a sample of size 100 is selected and is used to estimate .
Use z-tableWhat is the probability that the sample mean will be
within +/- 6 of the population mean (to 4 decimals)What is the
probability that the sample mean will be within +/- 19 of the
population mean
A population has a mean of 200 and a standard deviation of 70. Suppose a sample...
A population has a mean of 200 and a standard deviation of 70.
Suppose a sample of size 100 is selected and is used to estimate .
Use z-table. What is the probability that the sample mean will be
within +/- 3 of the population mean What is the probability that
the sample mean will be within +/- 17 of the population mean (to 4
decimals)? (Round z value in intermediate calculations to 2 decimal
places.)
A population has a mean of 200 and a standard deviation of 50. Suppose a sample...
A population has a mean of 200 and a standard deviation of 50.
Suppose a sample of size 100 is selected and x-bar is used to
estimate μ. What is the probability that the sample mean will be
within ±15 of the population mean? State your answer as a decimal
with 4 decimal places.
A population has a mean of 200 and a standard deviation of 70. Suppose a sample...
A population has a mean of 200 and a standard deviation of 70.
Suppose a sample of size 100 is selected and is used to estimate .
Use z-table. What is the probability that the sample mean will be
within +/- 6 of the population mean (to 4 decimals)? (Round z value
in intermediate calculations to 2 decimal places.) What is the
probability that the sample mean will be within +/- 11 of the
population mean (to 4 decimals)? (Round...
A population has a mean of 200 and a standard deviation of 80. Suppose a sample...
A population has a mean of 200 and a standard deviation of 80.
Suppose a sample of size 125 is selected and is used to estimate .
Use z-table.
What is the probability that the sample mean will be within +/-
5 of the population mean (to 4 decimals)? (Round z value
in intermediate calculations to 2 decimal places.)
What is the probability that the sample mean will be within +/-
14 of the population mean (to 4 decimals)? (Round...
A population has a mean of 800 and a standard deviation of 200. Suppose a sample...
A population has a mean of 800 and a standard deviation of 200.
Suppose a sample of size 400 is selected and x is used to estimate
μ. (Round your answers to four decimal places.)
(a) What is the probability that the sample mean will be within
±5 of the population mean?
(b) What is the probability that the sample mean will be within
±10 of the population mean?
A simple random sample of 90 items resulted in a sample...
A population has a mean of 400 and a standard deviation of 70. Suppose a sample...
A population has a mean of 400 and a standard deviation of 70.
Suppose a sample of size 125 is selected. Use z-table.
a. What is the probability that the sample mean
will be within +4 or -4 of the population mean (to 4 decimals)?
b. What is the probability that the sample mean
will be within +10 0r -10 of the population mean (to 4
decimals)?
A population has a mean of 300 and a standard deviation of 70. Suppose a sample...
A population has a mean of 300 and a standard deviation of 70.
Suppose a sample of size 125 is selected and is used to
estimate . Use z-table.
What is the probability that the sample mean will be within +/-
3 of the population mean (to 4 decimals)? (Round z value
in intermediate calculations to 2 decimal places.)
What is the probability that the sample mean will be within +/-
10 of the population mean (to 4 decimals)? (Round z...
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