Question

Three randomly selected households are surveyed. The numbers of people in the households are 2, 4 and 9. Assume that samples of size n = 2 are randomly selected with replacement from the population of 2, 4 and 9. Listed below are nine different samples.

2,2 2,4 2,9 4,2 4,4 4,9 9,2 9,4 9,9

A. ) Find the variance of each of the nine samples, then summarize the sampling distribution of the variances in the format of a table representing the probability distribution of the distinct variance

B.) Do the sample variances target the value of the population variance? In general, do sample variances make good estimators of population variances? Why or why not?

Answer #1

Three randomly selected households are surveyed. The numbers of
people in the households are 4, 5, and 9. Assume that samples of
size n = 2 are randomly selected with replacement from the
population consisting of 4, 5 and 9. Listed below are the nine
different samples.
4,4 4,5
4,9
5,4 5,5 5,9
9,4 9,5 9,9
A. ) Find the median of each nine samples then summarize the
sampling distribution of the medians in the format of a table
representing the...

Three randomly selected households are surveyed. The numbers of
people in the households are
2,
4,
and
12.
Assume that samples of size
nequals=2
are randomly selected with replacement from the population
of
2,
4,
and
12.
Listed below are the nine different samples. Complete parts (a)
through (c).
2,2,
2,4,
2,12
4,12
12,2
12,4
12,12
a. Find the variance of each of the nine samples, then
summarize the sampling distribution of the variances in the format
of a...

Three randomly selected households are surveyed. The numbers of
people in the households are 2, 4, and 12. Assume that samples of
size nequals2 are randomly selected with replacement from the
population of 2, 4, and 12. Listed below are the nine different
samples. Complete parts (a) through (c).
2,2 2,4 2,12 4,2 4,4 4,12 12,2 12,4 12,12
a. Find the variance of each of the nine samples, then summarize
the sampling distribution of the variances in the format of...

HW6#14
Three randomly selected households are surveyed. The numbers of
people in the households are 2, 3, and 10.
Assume that samples of size n=2
are randomly selected with replacement from the population of 2,
3,and 10.
Listed below are the nine different samples. Complete parts (a)
through (c).
2,2
2,3
2,10
3,2
3,3
3,10
10,2
10,3
10,10
A. Find the median of each of the nine samples, then summarize
the sampling distribution of the medians in the format of...

Three randomly selected households are surveyed. The numbers of
people in the households are 22, 44, and 12. Assume that samples
of size nequals=2 are randomly selected with replacement from the
population of 2, 4, and 12. Listed below are the nine different
samples. Complete parts (a) through (c).
22,, 2,4 2,12 4,2 4,4 4,12 12,2 12,4 12,12 a.
Find the median of each of the nine samples, then summarize the
sampling distribution of the medians in the format of...

Three randomly selected households are surveyed. The numbers of
people in the households are
11,
22,
and
1212.
Assume that samples of size
nequals=2
are randomly selected with replacement from the population
of
11,
22,
and
1212.
Listed below are the nine different samples. Complete parts (a)
through (c).
11,11
11,22
11,1212
22,11
22,22
22,1212
1212,11
1212,22
1212,1212
a. Find the variance of each of the nine samples, then
summarize the sampling distribution of the variances in the format...

Three randomly selected households are surveyed. The numbers of
people in the households are 22, 33, and 10. Assume that samples
of size nequals=2 are randomly selected with replacement from the
population of 2, 3, and 10. Listed below are the nine different
samples. Complete parts (a) through (c).
2,2
2,3
2,10
3,2
3,3
3,10
10,2
10,3
10,10
a. Find the median of each of the nine samples, then summarize
the sampling distribution of the medians in the format of...

Three randomly selected households are surveyed. The numbers of
people in the households are
3,
5,
and
10.
Assume that samples of size
n=2
are randomly selected with replacement from the population
of
3,
5,
and
10.
Listed below are the nine different samples. Complete parts (a)
through (c).
3,3
3,5
3,10
5,3
5,5
5,10
10,3
10,5
10,10
a. Find the median of each of the nine samples, then summarize
the sampling distribution of the medians in the format...

Assume a population of 2, 5 and 9. Assume that samples of size n
= 2 are randomly selected with replacement from the population.
Listed below are the nine different samples. Complete parts through
d below.
4,4 4,5 4,9 5,4
5,5 5,9
9,4 9,5
9,9
A.) Find the value of the population standard deviation
B.) Find the standard deviation of each of the nine samples,
then summarize the sampling distribution of the standard deviations
in the format of a table...

Three randomly selected households are surveyed. The numbers of
people in the households are 1, 2, and 12. Assume that samples of
size nequals2 are randomly selected with replacement from the
population of 1, 2, and 12. Construct a probability distribution
table that describes the sampling distribution of the proportion of
odd numbers when samples of sizes nequals2 are randomly selected.
Does the mean of the sample proportions equal the proportion of odd
numbers in the population? Do the sample...

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