Task 11: Figure 2.17 shows a similar study to that in Task 10, but the means were

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Task 11: Figure 2.17 shows a similar study to that in Task 10, but the means were 10 (singing) and 10.01 (conversation), the standard deviations in both groups were 3, and each group contained 1 million people. Compute the values of the confidence intervals displayed in the figure. ②

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