Exhibit 10-6
The management of a department store is interested in estimating the difference between the mean credit purchases of customers using the store's credit card versus those customers using a national major credit card. You are given the following information. 
-Refer to Exhibit 10-6. A point estimate for the difference between the mean purchases of the users of the two credit cards is
Definitions:
Building Trust
The process of developing confidence in another's character and actions, fundamental for effective communication and team cohesion.
Skepticism
An attitude of doubt towards the truth of something, often involving questioning and requiring evidence before accepting any claim.
Self-Reliance
The reliance on one's own powers and resources rather than those of others.
Interpersonal Trust Scale
A measurement tool used to assess the degree of trust one individual has in others in a social or professional context.
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