In a study of the surface temperatures of vital (living) and non-vital (dead) teeth in a random sample of 32 adults seeking dental care at a university clinic, temperatures of vital and non-vital teeth were measured for each individual. The computer output shown below was generated. 
a)What proportion of observed variation in the surface temperature of vital teeth can be explained by the surface temperature of non-vital teeth?
b)Does the simple linear regression model appear to be useful? Justify your response with specific references to the computer output.
Definitions:
Generosity
The quality of being willing to give money, help, kindness, etc., more than is usual or expected.
Principle Of Need
A social and ethical principle suggesting that resources and assistance should be distributed based on individual needs.
Nonmaleficence
The ethical principle of doing no harm and preventing harm to others.
Beneficence
The ethical principle that emphasizes acting in the best interests of others, promoting good actions and minimizing harm.
Q1: The composition of the earth's atmosphere may
Q2: Let <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7677/.jpg" alt="Let represent
Q17: In many areas of the U.S., honey
Q19: Suppose that a newspaper conducts a survey
Q22: A box contains four slips of paper
Q29: Refer to Exhibit 4-2.<br> For an amino
Q42: Suppose 8 adult patients with the same
Q75: Present value is the value today of
Q111: You have a target of having $
Q160: Horizontal analysis evaluates financial statements by expressing