Question

The cost of a meal might affect how customers evaluate and appreciate food. to investigate, researchers worked with an italian all-you-can-eat buffet to perform an experiment. A total of 139 subjects were randomly assigned to pay either $4 or $8 for the buffet and then asked to rate the quality of the pizza on a 9-point scale. Subjects who paid $8 rated the pizza 11% higher than those who paid only $4. Identify the explanatory and response variables, the experimental units, and the treatments. Which of the following statements is true. randomized block design, matched pairs design.

A) Explanatory Variable: Pizza Quality, Response Variable: Payment Amount, Experimental Units: Pizza, Treatments: $4 and $8
B) Explanatory Variable: Payment Amount, Response Variable: Pizza Quality, Experimental Units: Subjects, Treatments: $4 and $8
C) Explanatory Variable: Subjects, Response Variable: Pizza Quality, Experimental Units: Payment Amount, Treatments: $4 and $8
D) Explanatory Variable: Buffet, Response Variable: Pizza Quality, Experimental Units: Payment Amount, Treatments: $4 and $8

Answer 1

The explanatory variable in this experiment is the Payment Amount, while the response variable is the Pizza Quality. The experimental units are the Subjects, and the treatments are the $4 and $8 buffet prices.

Step-by-step explanation:

The explanatory variable in this experiment is the Payment Amount, while the response variable is the Pizza Quality. The experimental units are the Subjects, and the treatments are the $4 and $8 buffet prices. The correct identification for these variables and components is option B) Explanatory Variable: Payment Amount, Response Variable: Pizza Quality, Experimental Units: Subjects, Treatments: $4 and $8.