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Data Module - Blackboard Activity
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What two assumptions must be met when you are using the z test to test differences between two means? Can the sample standard deviations s1 and s2 be used in place of the population standard deviations σ1 and σ2?Retired workers and disabled workers both receive Social Security benefits. What information would we need to test the claim that the difference in monthly benefits between the two groups is greater than $30 at the 0.05 level of significance? Write out the hypotheses and explain the testing procedure.
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Read the article "Differential Effects of a Body Image Exposure Session on Smoking Urge Between Physically Active and Sede ...
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Read the article "Differential Effects of a Body Image Exposure Session on Smoking Urge Between Physically Active and Sedentary Female Smokers," and identify the research questions and/or hypotheses as they are stated. Consider the following questions: What are the variables (sample sizes, population, treatments, etc.)? What are the inferential statistics used in this article? Were the proper steps of hypothesis testing followed?Write a two- to three-page paper presenting the information listed below. Include a title page and reference page in APA style. Cite any references made to the article within the body of the paper in APA style. Your paper should begin with an introductory paragraph (including a thesis statement) and end with a concluding paragraph summarizing the major points made in the body of the paper and reaffirming the thesis. When writing the article critique, your paper must:Determine what question(s) the authors are trying to answer by doing this research.Determine the hypothesis being tested and the concepts that were applied in this process.Evaluate the article and critique the statistical analysis employed in the study.Would you have included more and/or different variables? Explain your answer.Examine the assumptions and limitations of the statistical study.What would you have done differently in this case? Why?Identify how the authors applied statistical testing to the problem.Interpret the findings of the author(s) using statistical concepts.You may access the The Critical Thinking Community website for tips on how to formulate your thoughts and discussion of these questions in a logical and meaningful manner.Writing the Article CritiqueThe Assignment:Must be two to three double-spaced pages in length (excluding title and reference pages), and formatted according to APA style as outlined in the Ashford Writing Center.Must include a title page with the following:Title of paperStudent’s nameCourse name and numberInstructor’s nameDate submittedMust document all sources in APA style, as outlined in the Ashford Writing Center.Must include a separate reference page, formatted according to APA style as outlined in the Ashford Writing Center.Carefully review the Grading Rubric for the criteria that will be used to evaluate your assignment.
I have already attempted the solution and I am trying to check if I am ok
Sample size: 99% confidence interval for the average yield
(cups per pound), margin of error 0.3 (three tenths of a ...
I have already attempted the solution and I am trying to check if I am ok
Sample size: 99% confidence interval for the average yield
(cups per pound), margin of error 0.3 (three tenths of a cup), population
standard deviation, sigma, is 1.2 cups.
Planning Value
for P-Star:
Desired Margin
of Error:
Confidence
Level:
Intermediate
Calculations:
Z-Multiple:
Sigma:
M.E. Squared:
Z-Multiple
Squared:
Sample Size
Needed:
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How much did he pay for each property
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In this discussion, you will evaluate a research question and determine how that question might best be analyzed. To ...
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