Need urgent help - Sprint Planning

Analyze the processes and roles of the agile team in the sprint planning and how the sprint plan is executed and measured.

Instructions:  

Describe sprint planning including the processes involved.  

Summarize the roles of the Product Owner, development team, customer, and scrum master during the sprint planning.  

Explain who is responsible for executing the sprint plan and how the execution deliverable is measured against the sprint plan.  

Based on your analysis of the sprint planning and some of the roles of the agile team members, what are some of the challenges of sprint planning? 

Need 3 full pages - not including title and reference pages in APA. With a minimum of two references.