Mathematics, 07.12.2019 06:31 jaiyaharoldjh
Allen�s hummingbird (selasphorus sasin ) has been studied by zoologist bill alther a small group of 15 allen� s hummingbirds has been under study in arizona. the average weight for these birds is x? = 3.15 grams. based on previous studies, we can assume that the weights of allen�s hummingbirds have a normal distribution, with ? = 0.33 gram. find an 80% confidence interval for the average weight of allen�s hummingbirds in the study region. what is the margin of error? .109 -1.17 < u < 1.39 (is this correct? ) what conditions are necessary for your calculations? compare your results in the context of this problem. find the sample size necessary for an 80% confidence level with a maximal margin of error e = 0.08 for the mean weight of the hummingbirds. 3.88 (is this correct? )
Answers: 3
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Allen�s hummingbird (selasphorus sasin ) has been studied by zoologist bill alther a small group of...
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