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How would you define statistics?
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Statistics is the study of the collection, analysis, interpretation, presentation, and organization of data. In applying statistics to, e.g., a scientific, industrial, or societal problem, it is conventional to begin with a statistical population or a statistical model process to be studied.
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Peer to Peer response, statistics homework help
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Respond to at least one of your colleagues’ posts and provide a constructive comment on their assessment of diagnostics.Were all assumptions tested for?Are there some violations that the model might be robust against? Why or why not?Explain and provide any additional resources (i.e., web links, articles, etc.) to provide your colleague with addressing diagnostic issues.File be attached after question is contracted.
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What statistical test would be appropriate to use here? Explain the rationale for your answer.
What assumptions would need to be met in order to use the test?
Describe the data that the test would be based on as either quantitative or qualitative. Explain the rationale for your answer.
Write an example of how the null and alternative hypotheses for this test could be stated.
What would the researcher need to know in order to calculate the appropriate test statistic? I.e., what values need to be known or calculated in order to complete the calculation of the test statistic?
Given a data set that can be graphed as a standard normal curve, respond to the prompts below. (1 point each)
What defines the graph? I.e., what determines the shape of the graph and what is the relationship between these defining characteristics?
What must be done in order to transform a normal distribution of data into a standard normal distribution based on the same data?
What is the advantage of having transformed data so that it can be represented by a standard normal distribution?
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Why is the area under the standard normal curve above the mean always the same value?
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What statistical test would be appropriate in this case? Explain the rationale for your answer.
Identify the independent variable in this study.
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Describe a potentially confounding variable and explain how that might affect the conclusions from the study.
State the null and alternative hypotheses in words.
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What statistical test would be appropriate in this case? Explain the rationale for your answer.
State the null and alternative hypotheses in words.
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Describe a potentially confounding variable and explain how that might affect the conclusions from the study.Describe a potentially confounding variable and explain how that might affect the conclusions from the study.
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What statistical test would be appropriate to use? Explain the rationale for your answer.
Suggest how levels of these variables might be arranged in a table.
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Is the statistical test right-tailed, left-tailed or two-tailed? Explain the rationale for your answer.
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