Question
In: Statistics and Probability
PROBLEM 2: Percentage of people getting AIDS. Is there a difference ? Test at .05 significance...
PROBLEM 2:
Percentage of people getting AIDS. Is there a difference ? Test at .05 significance level.
Uncircumcised Men: 76/400 Infected with AIDS (19%)
Circumcised Men: 4/100 Infected with AIDS (4%)
Solutions
orchestra answered 1 year agoRelated Solutions
At the .05 significance level, can we conclude that there is a difference in the mean...
At the .05 significance level, can we conclude that there is a
difference in the mean selling price of homes with a pool and homes
without a pool?
Use the F-test to determine which t-test to use.
At the .05 significance level, can we conclude that there is a
difference in the mean selling price of homes with an attached
garage and homes without an attached garage?
Use the F-test to determine which t-test to use.
Agent
Price
Pool (yes...
Test the hypothesis with a significance level (alpha) of .05 that the climate has changed since...
Test the hypothesis with a significance level (alpha) of .05
that the climate has changed since industrialization. Suppose that
the mean temperature throughout history is 52 degrees. During the
last 30 years, the mean temperature has been 53 degrees and suppose
the population standard deviation is 2 degrees. What can we
conclude? Then construct a 95 percent confidence interval for the
population mean.
Test the hypothesis (at the .05 level of significance) that individuals who were bullied are more...
Test the hypothesis (at the .05 level
of significance) that individuals who were bullied are more likely
to bully others. Test the hypothesis (at the .05 level of
significance) that individuals who were bullied committed more
bullying than those who were not bullied
ID of Respondent
#of Friends who Bully
Respondent was a Bully Victim (0=No, 1=Yes)
Gender (0=Female, 1=Male)
# of times Respondent Bullied Others
1
2
1
1
5
2
4
1
0
2
3
3
0
1...
1. Explain the process of creating a significance test. 2. What is the difference between a...
1. Explain the process of creating a significance
test.
2. What is the difference between a z-distribution and a
t-distribution? When would you use each of them.
3. How do confidence intervals and significance tests
relate?
4. What does having the value of zero contained in a
confidence interval for a difference tell you?
5. When do you use a matched-pairs t-test?
Percentage problem 2
On a 25 questions Math test, Peter got 60% of the 10 algebra questions correct, 80% of the 10 geometry questions correct and 60% of the 5 trigonometry questions correct. What percentage of all the questions did Peter get correct?
using the Chi-square Hypothesis Test. with .05 level of significance. What is the p value and...
using the Chi-square Hypothesis Test. with .05 level of
significance. What is the p value and the test statistic? How do
you find them?
Location
Error
Type
Midtown
Uptown
Total
Caller
Verification
15
12
27
Provided
Correct Information
17
11
28
Correct
Update
14
16
30
Other
Error Types
10
16
26
Total
56
55
111
Using the Sample Hypothesis Test Data and Chi-Square Data with a .05 level of significance, provide...
Using the Sample Hypothesis Test Data and Chi-Square Data with a
.05 level of significance, provide a summary report for the Vice
President including the following information in an essay with a
minimum of 500 words:
Two-Sample Hypothesis Test: Discuss the hypothesis test
assumptions and test used. Provide the test statistic and p-value
in your response. Evaluate the results of the hypothesis test with
the scenario. Provide recommendations for the Vice President.
Chi-square Hypothesis Test: Discuss the hypothesis test
assumptions...
Using the Sample Hypothesis Test Data and Chi-Square Data with a .05 level of significance, provide...
Using the Sample Hypothesis Test Data and Chi-Square Data with a
.05 level of significance, provide a summary report for the Vice
President including the following information:
Two-Sample Hypothesis Test: Discuss the hypothesis test
assumptions and test used. Provide the test statistic and p-value
in your response. Evaluate the results of the hypothesis test with
the scenario. Provide recommendations for the Vice President.
Chi-square Hypothesis Test: Discuss the hypothesis test
assumptions and test used. Provide the test statistic and p-value...
Using the Sample Hypothesis Test Data and Chi-Square Data with a .05 level of significance, provide...
Using the Sample Hypothesis Test Data and Chi-Square Data with a
.05 level of significance, provide a summary report including the
following information:
Two-Sample Hypothesis Test: Discuss the hypothesis test
assumptions and test used. Provide the test statistic and p-value
in your response. Evaluate the results of the hypothesis test with
the scenario.
Chi-square Hypothesis Test: Discuss the hypothesis test
assumptions and test used. Provide the test statistic and p-value
in your response. Evaluate the results of the hypothesis test...
Conduct a test and find if there is a difference at the α=0.01 level of significance....
Conduct a test and find if there is a difference at the α=0.01
level of significance. Inrandomized, double-blind clinical trials
of a new vaccine, children were randomly divided into two groups.
Subjects in group 1 received the new vaccine while subjects in
group 2 received a control vaccine. After the first dose, 67 of 607
subjects in the experimental group (group 1) experienced fever as a
side effect. After the first dose, 109 of 728 subjects in the
control group...
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