Below is a hypothesis test set up by a student who recently took introductory statistics:   H0: x = 5 HA: x ≠ 5 The sample mean of 100 cases used to implement the hypothesis test is x = 4.2. Which of the following statements are accurate? This is a one-sided hypothesis test. There is an error in how these hypotheses were constructed. It would be reasonable to swap "<" for "≠" in the alternative hypothesis. i only ii only iii only i and ii i and iii ii and iii

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Below is a hypothesis test set up by a student who recently took introductory statistics:

 

H0: x = 5

HA: x ≠ 5

The sample mean of 100 cases used to implement the hypothesis test is x = 4.2. Which of the following statements are accurate?

  1. This is a one-sided hypothesis test.
  2. There is an error in how these hypotheses were constructed.
  3. It would be reasonable to swap "<" for "≠" in the alternative hypothesis.
  • i only
  • ii only
  • iii only
  • i and ii
  • i and iii
  • ii and iii
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