Question
In: Statistics and Probability
In a two-sample problem about proportions, the samples are a.) Independent b.) Dependent
In a two-sample problem about proportions, the samples are
a.) Independent
b.) Dependent
Solutions
orchestra answered 2 years agoRelated Solutions
2.2. Indicate which test (paired samples (ie dependent) t-test, independent two samples t-test, one-sample t-test, independent...
2.2. Indicate which test (paired samples (ie dependent) t-test,
independent two samples t-test, one-sample t-test, independent
samples z-test) is most appropriate for the following situations :
A. Comparison of weight gain of two groups of 18 cows where one
group was raised following standard practices and the other group
was raised following “organic” standards.
B. Comparison of scores on a fitness test of Olympic-class
distance runners (n=20) with the national average score of people
of a similar age range (22-31...
Explain the difference between two independent samples and two dependent samples. Provide examples of each type...
Explain the difference between two independent samples and two
dependent samples.
Provide examples of each type of pairs of samples.
Compare and contrast the hypothesis testing process of two
independent and two dependent samples. (Do not conduct the
hypothesis testing.)
Label the following 2-sample tests as: Proportions, Independent, and Dependent (matched-pairs). Determine the null and alternative...
Label the following 2-sample tests as: Proportions, Independent,
and Dependent (matched-pairs). Determine the null and alternative
hypothesis and whether the test is one-tailed or two-tailed. Then
explain in detail the reasons behind your answers. You do not have
to work the problems out. 1. The pre-test scores for 6 students
were: 5, 5, 6, 7, 7, 8. The post-test scores for the same 6
students were: 7, 6, 7, 7, 9, 9. Is there a statistically
significant difference between the...
Label the following 2-sample tests as: Proportions, Independent, and Dependent (matched-pairs). Determine the null and alternative...
Label the following 2-sample tests as: Proportions, Independent,
and Dependent (matched-pairs). Determine the null and alternative
hypothesis and whether the test is one-tailed or two-tailed. Then
explain in detail the reasons behind your answers. You do not have
to work the problems out.
1. The pre-test scores for 6 students were: 5, 5, 6, 7, 7, 8.
The post-test scores for the same 6 students were: 7, 6, 7, 7, 9,
9. Is there a statistically significant difference between the...
Evaluate the differences between dependent and independent samples. Provide an example of each type of sample.
Evaluate the differences between dependent and independent
samples. Provide an example of each type of sample.
Evaluate the differences between dependent and independent samples. Provide an example of each type of sample.
Evaluate the differences between dependent and independent
samples. Provide an example of each type of sample.
Two random samples are selected from two independent populations. A summary of the samples sizes, sample...
Two random samples are selected from two independent
populations. A summary of the samples sizes, sample means, and
sample standard deviations is given below:
n1=37,n2=44,x¯1=58.9,x¯2=74.7,s1=5.5s2=10.1 n 1 =37, x ¯ 1 =58.9, s
1 =5.5 n 2 =44, x ¯ 2 =74.7, s 2 =10.1 Find a 95.5% confidence
interval for the difference μ1−μ2 μ 1 − μ 2 of the means, assuming
equal population variances. Confidence Interval
Two random samples are selected from two independent populations. A summary of the samples sizes, sample...
Two random samples are selected from two independent
populations. A summary of the samples sizes, sample means, and
sample standard deviations is given below:
n1=39,n2=48,x¯1=52.5,x¯2=77.5,s1=5s2=11 Find a 97.5% confidence
interval for the difference μ1−μ2 of the means, assuming equal
population variances. Confidence Interval =
Consider the following means and sample sizes for two independent samples (with the samples being denoted...
Consider the following means and sample sizes for two
independent samples (with the samples being denoted by the
subscripts "X" and "Y"):
MX = 6.286, MY= 1.973,
nX= 16, nY= 16. If the
standard error (sDifference) is 2.256, what is
the the upper boundary of the corresponding 95% confidence
interval? Please use a typical null hypothesis that predicts no
differences between the two populations when computing your answer.
When calculating your answer, please ensure that you subtract the
mean for...
1.) What is the difference between independent and dependent sampling. In the case of population proportions,...
1.) What is the difference between independent and dependent
sampling. In the case of population proportions, what statistical
test do you run if your samples are dependent?
2.) Explain, in your own words, how you create a confidence
interval or run a hypothesis test for two population means when
their respective samples are dependent.
3.) Explain, in your own words, the difference between the
classical approach and p-value approach in running a hypothesis
test.
4.) Since there is not an...
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