Question
A field biologist took a simple random sample of 225 Canada geese and found that 18 of them were carrying the parasite cryptosporidium. (a) Find
A field biologist took a simple random sample of 225 Canada geese and found that 18 of them were carrying the parasite cryptosporidium.
(a) Find and interpret 90% and 99% confidence intervals for the true population proportion of Canada geese which carry cryptosporidium.
(b) What sample size would you need to have taken so that the error E for a 98% confidence interval is no more than .025?
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a sample proportion 008 sample size n 225 Standard error SE sqrtpcap 1 pcapn SE sqrt008 1 008225 001...
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Introductory Statistics
Authors: Neil A. Weiss
10th Edition
321989171, 978-0321989178
