A scientific study was conducted to determine the hours of sleep that college students get per night. The study surveyed 29 college students and obtained the following data: 6.1, 8.7, 7.2, 8.5, 7.4, 8.5, 9.2, 7.4, 6.8, 7.1, 7.4, 9.2, 7.6, 8.1, 9.7, 4.7, 8, 8.1, 8.4, 6.7, 7.1, 5.9, 9, 9.5, 7.9, 5.8, 7.7, 7.4, 7.5 Assuming the population standard deviation is σ=1.18, construct a 86% confidence interval for the average hours of sleep per night that college students get. xˉ= α2= zα2= Margin of Error: E=

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