Question
In: Statistics and Probability
A sample of a population consisting of 100 Sudanese sheep, 1 Najdi sheep and 0 60...
A
sample of a population consisting of 100 Sudanese sheep, 1 Najdi
sheep and 0 60 sheep would be drawn. Australian.
1- Determine the type of sample appropriate for this
community.
2- If you know that the size of the drawn sample is 360 = n,
explain the drawing mechanism, extracting the share of each
layer.
Solutions
orchestra answered 2 years agoRelated Solutions
a random sample of 100 observations from a population. with standard deviation 60 yielded a sample...
a random sample of 100 observations from a population. with
standard deviation 60 yielded a sample mean of 110. A. test the
null hypothesis that m = 100 and the alternative hypothesis m >
100 using alpha = .05 and interpret the results b. test the null
against the alternative hypothesis that m isn't equal to 110. using
alpha = .05 and interpret the results c. compare the p values of
the two tests you conducted. Explain why the results...
a random sample of 100 observations from a population. with standard deviation 60 yielded a sample...
a random sample of 100 observations from a population. with
standard deviation 60 yielded a sample mean of 110. A. test the
null hypothesis that m = 100 and the alternative hypothesis m >
100 using alpha = .05 and interpret the results b. test the null
against the alternative hypothesis that m isn't equal to 110. using
alpha = .05 and interpret the results c. compare the p values of
the two tests you conducted. Explain why the results...
1. It is known that 15.2% of the population is left-handed. Select a sample of 60...
1. It is known that 15.2% of the population is left-handed.
Select a sample of 60 individuals? a) Describe the sampling
distribution of the sample proportion. Be sure to calculate the
mean (expected value) and the standard deviation of the sample
proportion. b) What is the probability that at least 20% of
individuals in this sample will be left-handed? c) What is the
probability that at most 35% of individuals in this sample will be
left-handed?
3,500 women between the ages 60 -74 years are in a town consisting of a population...
3,500 women between the ages 60 -74 years are in a town
consisting of a population of 15,000 persons. 85 cases of cancer
are in the town one year and 30 of these cases were women 60 -74
years old. What is the prevalence of cancer among women of this age
group?
Suppose that a sample of size 3 is drawn from a population consisting of the six...
Suppose that a sample of size 3 is drawn from a population
consisting of the six values 4, 8, 5, 3, 8, and 4, and that the
proportion of values that are greater than 4 is recorded. Find the
sampling distribution of this statistic by listing all possible
such samples of size 3. Find the mean and variance of the sampling
distribution.
A sample of size 30 students is to be drawn from a population consisting of 300...
A sample of size 30 students is to be drawn from a population
consisting of 300 students belonging to two colleges A and B. the
mean and standard deviations of their marks are given below:
Strata
Total number of students Ni
Mean
Standard deviation σi
College A
200
30
10
College B
100
60
40
Total
300
90
50
How would you draw the sample using proportional allocation
techniques? Hence, obtain the variance of the estimate of the
population mean...
f there are 100 individuals in a population and 20 are homozygous for B, 60 are...
f there are 100 individuals in a population and 20 are
homozygous for B, 60 are heterozygous, and 20 are homozygous for b,
what is the allele frequency of B? 80 percent
A simple random sample of 70 items resulted in a sample mean of 60. The population...
A simple random sample of 70 items resulted in a sample mean of
60. The population standard deviation is σ = 15.
(a) Compute the 95% confidence interval for the population mean.
(Round your answers to two decimal places.)
_________ to _________
(b) Assume that the same sample mean was obtained from a sample
of 140 items. Provide a 95% confidence interval for the population
mean. (Round your answers to two decimal places.)
_________ to _________
(c) What is the...
A simple random sample of 60 items resulted in a sample mean of 80. The population...
A simple random sample of 60 items resulted in a sample mean of
80. The population standard deviation is
σ = 5.
(a)
Compute the 95% confidence interval for the population mean.
(Round your answers to two decimal places.)
to
(b)
Assume that the same sample mean was obtained from a sample of
120 items. Provide a 95% confidence interval for the population
mean. (Round your answers to two decimal places.)
to
A simple random sample of 60 items resulted in a sample mean of 80. The population...
A simple random sample of 60 items resulted in a sample mean of
80. The population standard deviation is
σ = 5.
(a)
Compute the 95% confidence interval for the population mean.
(Round your answers to two decimal places.)
to
(b)
Assume that the same sample mean was obtained from a sample of
120 items. Provide a 95% confidence interval for the population
mean. (Round your answers to two decimal places.)
to
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