Question

An organizational psychologist is hired as a consultant to a company planning to open a coffee house for college students. The company wants to know if the customers will drink more coffee if the coffee house is decorated in a Paris motif or in a San Francisco motif. To answer this question, the psychologist sets up two similar rooms, but with the two different motifs and arranges to have eight students spend an afternoon in each room while being allowed to drink all the coffee they like. (The order in which they sit in the rooms is rotated, so that half do their first afternoon in the Paris room and half in the San Francisco room.) The amount of coffee each student drinks is recorded below:

Cups of Coffee Consumed for each Motif

Participant	Paris	San Francisco
A	8.5	8.4
B	4.3	4.6
C	2.0	1.7
D	7.8	7.3
E	7.0	7.2
F	9.1	7.4
G	3.3	3.0
H	3.5	3.5

Is there a significant difference between the number of cups of coffee consumed in the two rooms?

Use the five steps of hypothesis testing (at the .05 level of significance)       

Answer 1