Question
In: Statistics and Probability
A population has a mean of 300 and a standard deviation of 80. Suppose a sample...
A population has a mean of 300 and a standard deviation of 80. Suppose a sample of size 125 is selected and X is used to estimate M. 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 +/- 15 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.)
Solutions
orchestra answered 2 years agoRelated Solutions
A population has a mean of 300 and a standard deviation of 80. Suppose a sample...
A population has a mean of 300 and a standard deviation of 80.
Suppose a sample of size 125 is selected and X is used to estimate
M. 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 +/-
15 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...
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 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 +/-
18 of the population mean (to 4 decimals)? (Round...
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 100 is selected x and is used to estimate
m. Use z-table.
a. 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.)
b. What is the probability that the sample mean will be within +/-
13 of the population mean (to...
A population has a mean of 300 and a standard deviation of 90. Suppose a sample...
A population has a mean of 300 and a standard deviation of 90.
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.) 0.8884 What is the
probability that the sample mean will be within +/- 11 of the
population mean (to 4 decimals)?...
A population has a mean of 300 and a standard deviation of 90. Suppose a sample...
A population has a mean of 300 and a standard deviation of 90.
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 +/-
7 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 +/-
13 of the population mean (to 4 decimals)? (Round z...
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 300 and a standard deviation of 18. A sample of...
A population has a mean of 300 and a standard deviation of 18.
A sample of 144 observations will be taken. The probability that
the sample mean will be less than 303 is
0.4332
0.9772
0.9544
0.0668
None of the above
A population has a mean of 80 and a standard deviation of 7. A sample of...
A population has a mean of 80 and a standard deviation of 7. A
sample of 49 observations will be taken. The probability that the
mean from that sample will be larger than 81 is
0.1587
0.0062
0.0228
0.0668
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)?
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