Reference no: EM131081394
Question: Read the article (p. 221 - 225) «Performance and duration differences between online and paper-pencil tests» and answer the questions below.
Part A.
1. Develop a 95% confidence interval using data from this study.
2. Perform a hypothesis testing using data from this study. (show all the the appropriate steps).
3. Suggest another statistical technique(s) for the purpose of this study. Explain.
Part B. For this study briefly describe how the researcher draw conclusions from a sample about a population. Try to be as analytic as possible and use the comments bellow.
1. Determine (or define) the independent variable(s).
2. Determine (or define) the dependent variable(s).
3. Determine (or define) qualitative and quantitative variable(s).
4. Determine (or define) the sample and the population.
5. Describe the statistical method(s) being used and define inferential statistics. Interpret the meaning of p-value.
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Provide a context of the journal article
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How did the disease originate in humans
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Proportion of visitors to the grand canyon
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Weigh the spinach on the scale to get an accurate weight
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Define inferential statistics
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Calculate vf for the function
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Number summary for data for all five departments
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