A data set with 7 observations yielded the following.Use the simple linear regression model. 
Find the estimated y-intercept.
Definitions:
Tangibility
Refers to the physical existence of a product, making it possible to touch and see.
Service Quality
The assessment of how well a delivered service matches the customer's expectations.
Credence Properties
Attributes of a product or service that cannot be fully evaluated before purchase and often even after use, typically related to quality or ethical considerations.
Dentistry
The medical field focused on the study, diagnosis, prevention, and treatment of diseases, disorders, and conditions of the oral cavity.
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