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Mathematics, 11.12.2019 05:31 alexalvarez304
Bill alther is a zoologist who studies anna's hummingbird (calypte anna).† suppose that in a remote part of the grand canyon, a random sample of six of these birds was caught, weighed, and released. the weights (in grams) were as follows. 3.7 2.9 3.8 4.2 4.8 3.1 the sample mean is x = 3.75 grams. let x be a random variable representing weights of hummingbirds in this part of the grand canyon. we assume that x has a normal distribution and σ = 0.86 gram. suppose it is known that for the population of all anna's hummingbirds, the mean weight is μ = 4.50 grams. do the data indicate that the mean weight of these birds in this part of the grand canyon is less than 4.50 grams? use α = 0.10.
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Astudent survey asked: "how tall are you (in inches)? " here's the data: 67, 72, 73, 60, 65, 86, 72, 69, 74 give the five number summary. a. median: 73, mean: 70.89, iqr: 5, min: 60, max: 74 b. 60, 66, 72, 73.5, 86 c. 60, 67, 72, 73, 74 d. 0, 60, 70, 89, 74, 100
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Bill alther is a zoologist who studies anna's hummingbird (calypte anna).† suppose that in a remote...
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