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Assignment help 1118

1. The correlation between the number of hours spent studying and the number of exam mistakes is -0.25 , if Howard is ABOVE average in hours of studying, what can be predicted about his exam performance

2. Howard says the correlation of -0.25 in (1) is illogical. Claiming that since studying usually improves test performance, the correlation should be positive. Is he right? explain.

3. He believes the size of the correlation in (1) can be increased with a transformation of scale. He suggests the same data is re analyzed and number of hours, is converted into number of minutes studying. Will this work? explain.


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