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Ch. 5 Taking a Simple Random Sample

Do Now: 1. Take out HW. 2. Copy down HW. 3. What are the types of Bias and Sampling Error we discussed last class? Explain what they are. Ch. 5 Taking a Simple Random Sample. SRS Day 1. Why do we sample?. -We sample because we want to know something about our population.

bernard-williams
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Ch. 5 Taking a Simple Random Sample

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  1. Do Now:1. Take out HW.2. Copy down HW.3. What are the types of Bias and Sampling Error we discussed last class? Explain what they are.

  2. Ch. 5 Taking a Simple Random Sample SRS Day 1

  3. Why do we sample? -We sample because we want to know something about our population. -We sample because taking a census is often costly and takes a lot of time. -We always want our sample to be representative of our population.

  4. Simple Random Sample (SRS) (Def). A random sample in which every individual and every group of individuals have the same chance of being chosen.

  5. Example 1: Taking an SRS of the Class • Let’s take a sample of size n=5. • Label. • Table (or Calculator)

  6. Table B of Random Digits

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