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

MATLAB: An Introduction with Applications
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Suppose a certain species bird has an average weight of x = 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.
a. 33
O b. 17
c. 9
d. 5
e. 65
Transcribed Image Text:Suppose a certain species bird has an average weight of x = 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. a. 33 O b. 17 c. 9 d. 5 e. 65
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