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COSA #1: Proportions Topic of Interest: The proportion of people who prefer coffee over tea in a city. How would you collect data (Sample) for

COSA #1: Proportions

Topic of Interest: The proportion of people who prefer coffee over tea in a city.

  • How would you collect data (Sample) for your question of interest (Sampling Method)?
  • How many would you sample and why?
  • Organize your numbers, Make tables, Make some charts/graphs, Descriptive Statistics
    • Proportion - Frequency Tables, Pie/Bar Chart, . . .
  • a confidence interval for your population parameter, .
  • an appropriate Hypothesis Test (one or two sample based off of your topic of interest)
  • Find the conclusion of your Hypothesis Test

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