A company classifies quality of the furniture it manufactures based on four categories: Excellent, Good, Acceptable, and Unacceptable. The quality department wants to test if quality rating is independent of the work shift at which it was produced. 927 products were evaluated, leading to the contingency table below. Use 5% significance.

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Shift 12 32₂ Total Excellent 65 69 86 220 Good 63 64 80 207 Quality Acceptable 116 121 148 385 Unacceptable 36 35 44 115 Total 280 289 358 927