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Confidence Level Assignment | Professional Writing Services

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December 10th, 2019

Suppose a certain species bird had an average weight of x=3.55grams. based on the previous studies we can assume that the weight of these birds have a normal distribution with o=0.29grams.

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Find the sample size necessary for an 85% confidence level with a maximum error of estimated E=0 .09 for the mean weights of the hummingbirds 

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