SOLUTION: suppose that a travel bureau claims that the trees in a forest are 84 feet tall on average, with a standard deviation of 2 feet. If you took a sample of 64 trees, which of the foll
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Question 871609: suppose that a travel bureau claims that the trees in a forest are 84 feet tall on average, with a standard deviation of 2 feet. If you took a sample of 64 trees, which of the following mean heights would be outside the 95% confidence interval Answer by ewatrrr(24785) (Show Source):
Hi
mean = 84, SD = 2, Sample 64,
95% confidence interval: z = 1.96
ME = 1.96*2/√64 = .49 Using .5
CI: 83.5< mean < 84.5
Outside of that: x ≤ 83.5 and ≥ 84.5
