2. Write a brief answer to each of the following: a) What does it mean to say that we are going to use a sample to draw an inference about a population?   b) Why is a random sample so important for this process?   c) If we wanted a random sample of students in the cafeteria, why couldn't we just choose the students who order Diet Pepsi with their lunch?   d) Comment on the statement, "A random sample is like a miniature population, whereas samples that are not random are likely to be

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