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13. After the institution of the One-Child Policy, the average number of children per household in...

13. After the institution of the One-Child Policy, the average number of children per household in China dropped to 1.6 children per household. Assume that the standard deviation was 0.3 children per household. If a modern study of 100 families found that the average number of children was 2.1, would this suggest that the birthrate in China has increased?

  1. What is the null hypothesis?

  2. What is the null hypothesis?

  3. Calculate the test statistic

  4. What are the upper and lower critical values?

  5. Calculate the p-value:

  6. Do you accept or reject the null?

  7. Explain what you conclude in terms of the original research question, ex: “I reject the null hypothesis and conclude that smoking is associated with higher rates of cancer.”

math   Statistics-And-Probability   
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