7.123 Which design? The following situations all require inference about a mean or means. Identify each as (1) a single sample, (2) matched pairs, or (3) two independent samples. Explain your answers.

1. (a) Your customers are college students. You are interested in comparing the interest in a new product that you are developing between those students who live in the dorms and those who live elsewhere.

2. (b) Your customers are college students. You are interested in finding out which of two new product labels is more appealing.

3. (c) Your customers are college students. You are interested in assessing their interest in a new product.