Hypothesis Testing Quiz
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Questions and Answers

What is the null hypothesis for the investigation into the change in weekly production?

  • $H_0: ar{x} < 200$
  • $H_0: ar{x} eq 200$
  • $H_0: ar{x} = 200$ (correct)
  • $H_0: ar{x} > 200$

    • What is the alternative hypothesis for the investigation into the change in weekly production?

  • $H_1: ar{x} < 200$
  • $H_1: ar{x} > 200$
  • $H_1: ar{x} = 200$
  • $H_1: ar{x} eq 200$ (correct)

    • What is the test statistic chosen for the investigation?

  • z (correct)
  • t
  • Chi-square
  • F

    • What is the probability of committing a type I error at a significance level of .01?

    <p>0.01</p> Signup and view all the answers

    What is the null hypothesis for the assessment of the trend reduction in student failures?

    <p>$H_0: p = 0.3$</p> Signup and view all the answers

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