An automotive part must be machined to close tolerances to be acceptable to customers. Production specifications call for a maximum variance in the lengths of the parts of 0.0004. A quality control sample produced the data in the Microsoft Excel Online file below. Using a = 0.05, test to see whether the population variance specification is being violated. Open spreadsheet 1. Formulate the null and alternative hypotheses for this application. Ho: 0² H₂: 0² 2. Test statistic = 3. The p-value is 4. Conclusion: 5. Test results: Check My Work © Reset Problem © (to 2 decimals)

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