Question

Suppose a manager at a movie theater wants to learn more about their concession sales. She wishes to know the average sale per customer at their theatre. She randomly samples customers exiting their most popular movie, Frozen 2, to see how much money they spent on concessions.

1. Identify the sample, the population of interest, and the experimental unit.

2. What is the variable of interest? Is it quantitative or qualitative?

3. Is this a representative sample? Explain.

Answer 1

1.

(i) the sample: customers exiting their most popular movie, Frozen 2,

(ii) the population of interest : All customers at their theatre

(iii) the experimental unit. : concession sales of customers

2.

(i) the variable of interest : money they spent on concessions

(ii) It is quantitative.

3.

This is not a representative sample because the sample is selected from the customers exiting their most popular movie, Frozen 2,. To have the representative sample, the sample selected from customers exiting ordinry movie,