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The average time to complete a particular task is stated to be 160 seconds. Which of the following 95% two-sided confidence intervals on the true

The average time to complete a particular task is stated to be 160 seconds. Which of the following 95% two-sided confidence intervals on the true average time to complete the task rejects this claim?

A. 155, 180
B. 145, 190
C. 110, 180
D. 121, 128

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