Question

comfort ratings and temperature - adjustment preferences from one survey
participant comfort rating preferred temperature adjustment
20 -2 cooler
1 1 cooler
21 1 cooler
nan gao and her team conducted multiple surveys to determine participants levels of comfort in a room where the temperature was regulated by a commercial climate control system. participants filled out surveys several times a day to indicate their level of comfort on a scale from -3 (very cold) to +3 (very hot), with 0 indicating neutral (neither warm nor cool), and to indicate how they would prefer the temperature to be adjusted. the table shows three participants responses in one of the surveys. according to the table, all three participants wanted the room to be cooler,
which choice most effectively uses data from the table to complete the statement?
choose 1 answer:
a and they each reported the same level of comfort.
b even though each participants ratings varied throughout the day.
c but participant 20 reported feeling significantly colder than the other two participants did.
d but participant 1 reported feeling warmer than the other two participants did.

Explanation:

The comfort - rating for participant 20 is - 2, while for participants 1 and 21 it is 1. A lower comfort - rating indicates a colder feeling. So, participant 20 reported feeling significantly colder than the other two participants, even though all three wanted the room to be cooler.

Answer:

C. but participant 20 reported feeling significantly colder than the other two participants did.