Question
Asked Nov 6, 2019
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A politician believes that 60% of constituents are in favor of a particular issue. She takes a sample of 100 constituents and finds that 55 favor the issue. If you were to conduct a hypothesis test of this claim, what would be the decision rule?

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Expert Answer

Step 1

The hypotheses are given below:

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Null hypothesis: H p 0.60 Alternative hypothesis: H p 0.60

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Step 2

Here, the test is two-tailed.

Step-by-step procedure to obtain the critical value using MINITAB:

 

  • Choose Graph > Probability Distribution Plot choose View Probability > OK.
  • From Distribution, choose ‘Normal’ distribution.
  • Click the Shaded Area
  • Choose Probability and Both Tail for the region of the curve to shade...
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Distribution Plot Normal, Mean 0. StDev=1 0.4 0.3 0.2 0.1 0.025 0.025 0.0 1.960 0 1.960 Density

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Statistics

Hypothesis Testing

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