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    Statistics - Hypothesis Testing

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    1. A researcher demonstrated a correlation of r = 0.60 between teacher attire and student academic performance across 150 grade schools in her state. She concluded that encouraging teachers to be properly attired will increase academic performance. Do you agree or disagree with her conclusion? Why?

    2. Give three real life or business examples of each of the following:
    A) Positively related events. Explain why they are directly related.
    B) Negatively related events. Explain why they are inversely related.
    C) Spuriously related events. Explain why they are spuriously related.

    3. Determine whether the data for the following might show a positive, negative or no relationship between variables. Explain your answer.

    [See the attached questions file].

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    Solution Summary

    Neat and step-by-step solutions are provided for all the questions regarding positive and negative relationships. Examples are provided (see attachment).