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  3. stew’s cars operates 3 dealerships in three

Stew’s Cars operates 3 dealerships in three regions. The General Manager, Lynn, questioned whether the company’s...

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Verified Solution

Question

Statistics

Stew’s Cars operates 3 dealerships in three regions. The GeneralManager, Lynn, questioned whether the company’s mean profit marginper vehicle sold differed by region.

Steps

1. Specify population parameter of interest and state the null& alt hypotheses

  1. H0:

Ha:

  1. H0:

Ha:

2. State level of significance & decision rule

  

3. Select random samples from each population

4. Test hypotheses - Use Excel’s Data Analysis Tool.

Step5.1           Decision (Reject Ho vs Do not Reject Ho):                      

                                                                                                           

           

Step 5.2: Write up the conclusion and implication (use thecomplete sentence):

WestSouthwestNorthwest
370033002900
290021004300
410026005200
490021003300
490036003600
530027003300
220045003700
370024002400
48004400
30003300
4400
3200

Answer & Explanation Solved by verified expert
4.1 Ratings (755 Votes)
Using Excel go to Data select Data Analysis choose AnovaSingle FactorAnova Single    See Answer
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