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Suppose the National Transportation Safety Board (NTSB) wants to examine the safety of compact cars, midsize...

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Statistics

  1. Suppose the National Transportation Safety Board (NTSB) wantsto examine the safety of compact cars, midsize cars, and full-sizecars. It collects a sample of three for each of the treatments(cars types). Using the data provided below, test whether the meanpressure applied to the driver’s head during a crash test is equalfor each types of car. Use α = 5%.

Compact cars

Midsize cars

Full-size cars

64

46

47

65

43

45

69

52

40

Average: 66

Average: 47

Average: 44

               The average for all can be found as 52.3.

            a). Find SSG.

            b). Find SSE.

            c). Find SST

            d). Find F-value

           e). Find F-critical value from the Table.

           f). Make your decision.

Answer & Explanation Solved by verified expert
3.9 Ratings (360 Votes)
aFrom the given data the following Table is calculatedCompact carsMidsize carsFull size carsSum 198141132n 333Mean 6647441308266695834Std Dev264645833606SS144226Total Sample Size N 3    See Answer
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