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統計計算~贈
麻煩高手解答~~ 感激The manufacturer of batteries used in small electric appliances wants to estimate the average life of a battery. A random sample of 12 batteries yields = 34.2 and s = 5.9 hours. Give a 95% confidence interval for the average life of a battery. 用於小電器具的電池製造者想要估計電池的平均壽命。
12電池出產量隨意抽樣 = 34.2 and s = 5.9 hours. 給一個95%信賴區間為電池的平均壽命。
12電池出產量隨意抽樣 = 34.2
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