Failed Inspections When conducting tests of auto parts stores, the Arizona Department of Weights and Measures conducted
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Failed Inspections When conducting tests of auto parts stores, the Arizona Department of Weights and Measures conducted 100 inspections of Autozone stores and found that 63% of those inspections failed. Among 37 inspections at NAPA Auto Parts stores, 81% failed. Use a 0.05 significance level to determine whether there is a significant difference between those two rates of failures. Does it appear that either store is a better choice for consumers?
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