Based on the study's results, which statement about the loyalty program's impact is most accurate?
Answer
A
Despite the high average purchase frequency, the loyalty program had no measurable impact on customer purchases, as shown by the standard deviation.
B
Customers who did not join the loyalty program made as many purchases as those who joined.
C
The average purchase frequency is higher for loyalty program members, but the standard deviation shows that purchase behavior varies widely among participants.
D
The loyalty program increased purchase frequency for all customers equally.