Question

the journal of fish biology reported on a study to compare the incidence of parasites (tapeworms) inspecies of mediterranean and atlantic fish. in the mediterranean sea, 588 fish were captured and dissected, and 211 were found to be infected by the parasite. in the atlantic ocean, 246 fish werecaptured and dissected, and 52 were found to be infected. find and interpret a 90% confidence intervalfor the difference between the population proportion of infected fish in mediterranean sea and that ofthe atlantic ocean. for the interpretation, write out which parameter is bigger or that there is no statistically significant difference and give a brief explanation why.

Answer 1

The 90% confidence interval for the difference between the population proportion of infected fish in the Mediterranean Sea and the Atlantic Ocean is (-0.2011, 0.0976). This indicates that there is no statistically significant difference between the two populations, as the confidence interval includes 0. This means that the proportion of infected fish in the Mediterranean Sea is not significantly different from the proportion of infected fish in the Atlantic Ocean.

Explanation: