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5. Refer to the information of Q3. If the sample mean is 1,858 KWH, the 95% confidence interval estimate of the population mean is a.

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5. Refer to the information of Q3. If the sample mean is 1,858 KWH, the 95% confidence interval estimate of the population mean is a. 1,760 to 1,956 KWH b. 1,858 to 1,956 KWH C. 1,760 to 1,858 KWH d. none of these alternatives is correct

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