Question
In: Statistics and Probability
Which of the following is the best description of a simple random sample of size n...
Which of the following is the best description of a simple random sample of size n from a population of size N.
|
A) Any method of sampling in which individuals are selected in a completely haphazard fashion. |
|
|
B) Any method of sampling in which every group of individuals of size n is equally likely to be selected. |
|
|
C) Any method of sampling in which every individual is equally likely to be selected. |
|
|
D) Any method of sampling in which each individual has a probability of n/N of being selected. |
|
|
E) Any method of sampling that involves the use of a random digits table. |
Solutions
Expert Solution
The best description of a simple random sample is given by:
C) Any method of sampling in which every individual is equally likely to be selected.
Explanation: A simple random sampling is a way of sampling where every individual is equally likely to be selected. In other words if there are n individuals, the probability of each individual getting selected is 1/n.
orchestra answered 2 years agoRelated Solutions
Simple random sampling uses a sample of size n from a population of size N to...
Simple random sampling uses a sample of size n from a population
of size N to obtain data that can be used to make inferences about
the characteristics of a population. Suppose that, from a
population of 52 bank accounts, we want to take a random sample of
four accounts in order to learn about the population. How many
different random samples of four accounts are possible?
A simple random sample of size n is drawn. The sample mean is found to be...
A simple random sample of size n is drawn. The sample mean is
found to be 17.6, and the sample standard deviation, s, is found
to be 4.7.
A). Construct a 95% confidence interval about if the sample
size, n, is 51.
A simple random sample of size n is drawn. The sample mean is found to be...
A simple random sample of size n is drawn. The sample mean is
found to be 17.6, and the sample standard deviation, s, is found
to be 4.7.
Construct a 99% confidence interval about if the sample size,
n, is 34.
A simple random sample of size n equals n=40 is drawn from a population. The sample...
A simple random sample of size
n equals n=40
is drawn from a population. The sample mean is found to be
x overbar equals 120.3
and the sample standard deviation is found to be
s equals 12.3
Construct a 99% confidence interval for the population
mean.
A simple random sample of size n equals n=40 is drawn from a population. The sample...
A simple random sample of size
n equals n=40
is drawn from a population. The sample mean is found to be
x overbar equals x=120.1
and the sample standard deviation is found to be
s equals s=12.5.
Construct a 99% confidence interval for the population
mean.
The lower bound is:
The upper bound is:
*ANSWERS FOR TI 84 CALC
A simple random sample has a sample size of n = 65. Given the population is...
A simple random sample has a sample size of n = 65. Given the
population is normally distributed, find the critical value ta/2
corresponding to a 99% confidence level.
a) 2.678
b) 2.575
c) 2.000
d) 2.660
A simple random sample of size n is drawn. The sample mean, x, is found to...
A simple random sample of size n is drawn. The sample mean, x,
is found to be 18.5, and the sample standard deviation, s, is
found to be 4.6.
(a) Construct a 95% confidence interval about μ if the sample
size, n, is 34.
Lower bound: ___
Upper bound: ___
(Use ascending order. Round to two decimal places as
needed.)
(b) Construct a 95% confidence interval about μ if the sample
size, n, is 61.
Lower bound: ___
Upper bound:...
A simple random sample of size n is drawn. The sample mean, x, is found to...
A simple random sample of size n is drawn. The sample
mean, x, is found to be 35.1, and the sample standard deviation, s,
is found to be 8.7
a) Construct a 90% confidence interval for μ if the
sample size, n, is 100.
b) Construct a 90% confidence interval for μ if the
sample size, n, is 40. How does decreasing the sample size affect
the margin of error, E?
c) Construct a 96% confidence interval for μ if...
A simple random sample of size n is drawn. The sample mean, x , is found...
A simple random sample of size n is drawn. The sample mean, x
, is found to be 18.5 , and the sample standard deviation, s, is
found to be 4.3.
(a) Construct a 95% confidence interval about mean if the
sample size, n, is 35.
(b) Construct a 95% confidence interval about mean if the
sample size, n, is 71. How does increasing the sample size affect
the margin of error, E?
(c) Construct a 99% confidence interval about...
A simple random sample of size n is drawn. The sample mean, x is found to...
A simple random sample of size n is drawn. The sample mean, x
is found to be 19.3 and the sample standard deviation, s, is found
to be 4.7
a. Construct a 95% confidence interval about mu if the sample
size, n, is 35
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Suppose Rialto is the only movie cinema in a small college town, so it is essentially...
- With VMI, members of the supply chain share planning, demand, forecasting, and inventory information.
- Large lots are desirable in supply chain coordination despite increasing holding costs.
- ***Convert the C++ to Python*** #include <iostream> using std::cout; using std::cin; using std::endl; int charClass; char...
- Make-or-Buy Decision Fremont Computer Company has been purchasing carrying cases for its portable computers at a...
- The following costs were incurred for the single product produced during the first year of operations...
- Non-constant growth model: Do=$2.00 required return on equity= 5% g= 9% n=1,2 g=7% n=3,4 g=3% n=5...
ADVERTISEMENT