Based on the residual plot below,you will conclude that there might be a violation of which of the following assumptions? 
Definitions:
Descriptive Norms
Refers to the perception of behaviors that are typical or normal within a specific group, guiding members' actions based on what is commonly done.
Injunctive Norms
Social norms that are perceived as approved or disapproved behaviors by a cultural or social group, guiding individuals on what they ought to do.
Focus Theory
An approach in psychology that examines how individuals concentrate their attention or energy on specific thoughts, tasks, or goals and the impact of this focus on behavior and cognition.
Social Contagion
The spread of ideas, attitudes, or behaviors through a group or society via social influence, similar to the transmission of infectious diseases.
Q7: Referring to Instruction 13-9,which of the following
Q95: Referring to Instruction 12-12,the degrees of freedom
Q97: Referring to Instruction 10-8,construct a 95% confidence
Q115: Referring to Instruction 10-4,what is the standardised
Q136: Referring to Instruction 10-12,a two-tailed test of
Q140: Referring to Instruction 12-12,to test the claim
Q145: Referring to Instruction 13-6,what can you say
Q155: Referring to Instruction 12-3,the director of cooperative
Q208: Referring to Instruction 13-13,which of the following
Q224: An interaction term in a multiple regression