6A.2
Biologists studying horseshoe crabs want to estimate the percent of crabs in a certain area that
are longer than 35 centimeters. The biologists will select a random sample of crabs to
measure.
Which of the following is the most appropriate method to use for such an estimate?

A) A one-sample z-interval for a population proportion

B) A one z-sample -interval for a sample proportion

C) A two-sample z-interval for a population proportion

D) A two-sample z-interval for a difference between population proportions

E) A two-sample -interval for a difference between sample proportions