Testing Hypotheses for Means

Review the Learning Resources and the media programs related to t tests.For additional support, review the Skill Builder: Research Design and Statistical Design and the Skill Builder: Hypothesis Testing for Independent Samples t-test, which you can find by navigating back to your Blackboard Course Home Page. From there, locate the Skill Builder link in the left navigation pane.Also, review the t test scenarios found in this week’s Learning Resources and consider the three different approaches of t tests:Independent sample t testPaired sample t testOne sample t testBased on each of the three research scenarios provided, open the High School Longitudinal Study dataset or the Afrobarometer dataset from this week’s Learning Resources using SPSS software, then choose and run the appropriate t test.Once you perform your t test analyses, review Chapter 11 of the Wagner text to understand how to copy and paste your output into your Word document.For this Assignment:Write a 2- to 3-paragraph analysis of your t test results for each research scenario and include the SPSS syntax and output. Based on your results, provide an explanation of what the implications of social change might be.
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Week 6
Scenarios
1. As an international development researcher, you would like to know African Citizen’s
perceptions about current levels of democracy. Your working hypothesis is that a
series of reforms have increased African views of the level of democracy today. You
do not have a good research design to compare attitudes before and after the
reforms, but know that leaders and development experts would like to see a value of
6, on the scale of 1–10. Using the data from the 2015 Afrobarometer, determine
whether perceptions about current levels of democracy statistically differ from a
value of 6. Please provide: a 1–2 APA style paragraph statement that furnishes an
answer to this question, note the relevant statistics, comment on meaningfulness
and include your relevant SPSS output.
2. As an international development researcher, you have already tested whether
perceptions about the current levels of democracy differ from a value of 6. Given
recent social change movements in North Africa, you now want to determine
whether there is a statistical difference in these perceptions between North Africa
and Southern Africa. Using the data from the 2015 Afrobarometer, please provide: a
1–2 APA style paragraph statement that furnishes an answer to this question, note
the relevant statistics, comment on meaningfulness, and include your relevant SPSS
output.
3. As an educational researcher, would like to know whether high school student’s
perceptions about mathematical utility changed between their freshman and senior
year. Each respondent is asked the same series of questions about the utility of
mathematics in their future during their freshman and senior year. These questions
are combined to form one variable of mathematical utility; higher values indicate
higher levels of mathematical utility. Using the High School Longitudinal Survey,
please provide: a 1–2 APA style paragraph statement that furnishes an answer to
this question, note the relevant statistics, comment on meaningfulness, and include
your relevant SPSS output.
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