If your company is using Disregard in Statistics for a two-step close Sales process, you may not want your Sales Reps to be able to access the Disregard in Statistics checkbox when Resulting Appointments.
See also: Understanding Disregard in Statistics
Only the System Administrator User can Hide the Disregard in Statistics checkbox from Mobile App Users.
As the Admin User, login and navigate to Setup
Go to the Custom Settings menu
Locate the Public System Settings menu and click Manage
Then click Edit
Locate the "Mobile - Hide Disregard in Statistics" checkbox
Change the checkbox to TRUE
Save your changes