Statistical Sciences 1023A/B Lecture Notes - Lecture 1: Randomized Experiment, Aspirin, Hypothalamus
30 Jan 2017
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Lecture 1 - the benefits and risk of using statistics. Statistics: it is a collection of procedures and principles for gaining ad analyzing information in order to help people make decisions when faced with uncertainty. The average man is taller than the average woman - obvious. Taking aspirin helps prevent heart attacks - obvious. People are more likely to buy blue jeans in certain months than others - not. Men have lower resting pulse rates than women - not. Listening to mozart improves spatial reasoning - not. Hypothalamus plays a role in emotion, yet most people think about the heart. Psychologist lee salk studied the role of the heart in human relationships. A rhesus monkey at a zoo held her baby on the left on 40 out of 42 occasions. Out of 287 mothers (within 4 days of giving birth), 237 or 83% held their babies on the left-regardless of handedness.
