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Textbook Expert
Textbook ExpertVerified Tutor
11 Nov 2021

Given information

As per the given information in question ,

  • No of used cars is  
  • Sample mean is
  • Standard deviation of

Step-by-step explanation

Step 1.

We can use a Student’s-t distribution, as we don’t know the standard deviation population. The distribution is 

 

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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208

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