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Describe the following items for Report 2:
• Type of statistical method
• Purpose of report
• Explanation of randomization
Answer:• This was largely an observation based on personal experiences and general research.
• The purpose was to summarize how peoples' moods and behaviors are affected by the weather.
• This observational study mentions personal observations as well as research-based observations, both of which support the writer's hypothesis that weather affects mood. However, it is not clearly stated how the research observations were selected. The author could have purposely found articles that support the hypothesis simply to support her claim. Therefore, the lack of randomizing the observations and research creates bias.