Question

A poll of 1234 adults found that 65% expect an increase in environmental pollution in the next decade. assume that this poll is a simple random of all adults that was conducted by telephone. this causes some bias, because people without phones cannot be in the sample. how is this bias reflected in the confidence statement?

Answer 1

this causes some bias, because people without phones cannot be in the sample

Answer 2

this causes some bias, because people without phones cannot be in the sample