Suppose a certain species bird has an average weight of = 3.55 grams. We can assume that the weights of these birds have a normal distribution with = 0.39 grams. Find the sample size necessary for a 90% confidence level with a maximal error of estimate E = 0.16 for the mean weights of the birds. Round your answer to the next higher whole number. O a. 33 O b. 17 O c. 9 O d.5 O e. 65

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Q: estimated standard error?

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Q: Suppose a certain species bird has an average weight of 3.5 grams. We can assume that the weights of…

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