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2. A sample from an assumed normal distribution produced the values 9, 14, 10, 12, 7, 13, 12. a) What is the single best estimate

2. A sample from an assumed normal distribution produced the values 9, 14, 10, 12, 7, 13, 12. a) What is the single best estimate of ? b) Find an 80% C.I. for *

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