Question: State a conclusion: Can you conclude that the quality varies among shifts? Use the = 0.01 level of significance. At an assembly plant for

State a conclusion: Can you conclude that the quality varies among shifts?

Use the α = 0.01 level of significance.

At an assembly plant for light trucks, routine monitoring of the quality of welds yielded the following data. Number of Welds High Moderate Low Quality Quality Quality Day Shift 467

Number of Welds High Moderate Low Quality Quality Quality Day Shift 467 191 42 Evening Shift 445 171 34 Night Shift 254 129 17

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