A company has developed a new light bulb that seems to burn longer than most residential bulbs. To determine how long these bulbs burn, the company randomly selects a sample of the bulbs and burns them in the laboratory. The Excel output for a 90% confidence interval is shown here. Discuss the output.

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A 1 2 Count 3 Sample mean 4 Sample standard deviation 5 Margin of error Bulb Bum B 84 2198.217 152.991 27.767