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(Solved) A high school counselor wants to examine whether the teenage pregnancy rate at her school is different from the rate nationwide. She knows that

Question: A high school counselor wants to examine whether the teenage pregnancy rate at her school is different from the rate nationwide. She knows that the rate nationwide is 15 %. She randomly selects 80 female students from her high school. She finds that 9 out of 80 students are either pregnant now or have been pregnant previously.

  1. What statistical test should be used to analyze the data?
  2. Identify H 0 and H a for this study
  3. Conduct the appropriate analysis
  4. Should H 0 be rejected? What should the researcher conclude?

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