What is it called when one rejects the null hypothesis and accepts the alternative, when in fact the null hypothesis is false?

A sample space is:

Which of these is not an Online Survey Programming Tool:

What is a benefit in using a "laddering" interview?

Which of the following is an advantage of using a mixed-mode survey?

Open end responses are coded using a specific technique

What is meant by the expression 'Type II error'?

It is important that surveys actually measure what they are intended to. Which of the following terms describes this consideration?

Which of the following types of sampling involves selecting a set number (which need not be the same) of a distinct sub-group (or 'stratum')?

To what end do market researchers use 'choice modeling'?