Test whether the mean pressure applied to the driver’s head during a crash test is equal for each type of car.

Suppose the National Transportation Safety Board (NTSB) wants to examine the safety of compact cars, midsize cars, and full-size cars. It collects a sample of three for each of the treatments (cars types).

 

Compact Cars

Midsize Cars

Full size Cars

643

469

484

655

427

456

702

525

402

 

b) Using the hypothetical data provided above, test whether the mean pressure applied to the driver’s head during a crash test is equal for each type of car. Use α =5%.      

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Statistics Dissertation 1 Answer Md Fahad