Question: A researcher for an automobile manufacturer wishes to see if the ages of automobiles are equally distributed among three categories: less than 3 years old, 3 to 7 years old, and 8 years or older. A sample of 30 adult automobile owners is selected, and the results are shown. At a = 0.05 can it be considered that the ages of the automobiles are equally distributed among the three categories? What would the results suggest to a tire manufacturer?

Less than 8 years

Category three years 3 to 7 years or older

Number 8 10 12

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