How accurate was your estimate of the number of bass using the mark-recapture method?
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A capture-recapture experiment designed to estimate the size of a fish population in a lake was carried out in two phases. In the first phase, 400 fish were captured, tagged, and released. In the second phase, 157 fish were captured, of which 27 were found to be tagged. Provide answers to the following to the nearest integer. (a) Making the necessary assumptions about independent sampling, give an estimate of the size of the fish population. 0.828 (b) Give a standard error for your estimate in (a). 0.0009 (c) Using a more accurate method than simply finding the estimate plus/minus 1.96 SE, give a 95% confidence interval for the population size. ( 0.170210 , 0.173738 )
Sri K.
1. A biologist nets 45 largemouth bass from a farm pond, tags their fins, and releases them unharmed. A week later, she nets 58 bass from the same pond, including 26 with tags. Based on the Mark Recapture method, estimate the number of bass in the pond. 2. A biologist originally marked 50 butterflies in Wilson Park. In his second visit to the park, he captured 20 butterflies. Of those 20, 8 were found to have tags. Based on this information, what is the estimated population size of the butterflies in Wilson Park? Please show the calculations. Thank you.
Jacob F.
A capture-recapture experiment designed to estimate the size of a fish population in a lake was carried out in two phases. In the first phase, 400 fish were captured, tagged, and released. In the second phase, 157 fish were captured, of which 27 were found to be tagged. Provide answers to the following to the nearest integer. (a) Making the necessary assumptions about independent sampling, give an estimate of the size of the fish population. 0.1720 (b) Give a standard error for your estimate in (a). 0.0301 (c) Using a more accurate method than simply finding the estimate plus/minus 1.96 SE, give a 95% confidence interval for the population size. ( 0.1130 , 0.2310 )
Sheryl E.
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