2. Identify the data sets level of measurement. (A) nominal (B) ordinal (C) interval (D) ratio

(a) The ratings of hotels by number of stars.

(b) Nationality of a randomly chosen player in the Wimbledon tennis tournament.

(c) The closing price of a stock on New York Stock Exchange.

(d) Student's evaluation of a professor's teaching on a Likert scale.

3. Identify which of the following sampling techniques is used. A) cluster B) random C) convenience D) systematic E) stratified

(a) Thirty work orders are selected from a filing cabinet containing 500 work order folders by choosing every 15th folder.

(b) A researcher for an airline, interviews all of the passengers on five randomly selected flights.

(c) A community college student interviews everyone in his statistics class to determine the percentage of students that own a car.