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When experimentation with lysergic acid diethylamide (LSD) first began, the hallucinogenic effect was noted as so similar to the symptoms of schizophrenia that medical scientists thought they had discovered a chemical cause of the mental disorder. Because an increase in the level of copper in the blood is frequently (but not always) associated with schizophrenia, a study was made to see whether the level of blood copper increased with the administration of increasing dosages of LSD. a. What null hypothesis would be used in an analysis of this experiment? b. What would be the alternative hypothesis? c. Dosages were calibrated according to the percentage of those receiving the dosage who hallucinate. The level of blood copper was measured at each dosage. The data obtained were as follows: Effective dosage (%): 0 25 50 75 100 Level of blood copper 0.87 0.98 0.70 0.90 1.05 (mg / liter): i. Compute the slope of the least-squares trend line. ii. Test the B = 0 at a = 0.5. iii. Draw conclusions, answering the following questions: Do increasing dosages of LSD cause significant increases in blood copper level? Because increased blood copper is a common condition in schizophrenia, is there significant evidence that LSD may be a chemical cause of schizophrenia