The solar energy consumed (in trillion BTU) in the United States by year from 2000 to 2015 is shown in the following table. Read down then across for year. Check the assumption of normality in the population. Construct a 90% confidence interval for the mean solar energy consumed. Include your solutions. 55.291 59.718 62.688 63.886 66.458 70.237 68.548 69.787 69.857 70.833 66.388 68.793 65.454 64.391 63.62 63.287 O a. NONE

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