Samsung tablet touch screen is not calibrated correctly, I need to touch about two in. down from what I want to engage it. Anyone know how to fix that?

may be a hardware issue

Angela, Menu, Settings, Language & keyboard, Touch Input, Text Input, under Finger touch precision, choose Calibration tool or even Reset calibration.
If you have the app, yes you can calibrate touch screen.
Try links below for more info.

https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=6&cad=rja&uact=8&ved=0ahUKEwjarZDS6I7LAhUht4MKHZnFCjMQFghDMAU&url=http%3A%2F%2Fwww.makeuseof.com%2Ftag%2F5-tips-to-resolve-your-tablets-touchscreen-problems%2F&usg=AFQjCNFf9dnvntm_9LO9ABW7MFPnAqfVXQ

https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwjarZDS6I7LAhUht4MKHZnFCjMQFggiMAE&url=http%3A%2F%2Fforums.androidcentral.com%2Fverizon-htc-thunderbolt%2F126839-re-calibrate-screen.html&usg=AFQjCNEPnrTVeFAdLOCMFsKsJs-RIRkYBA

5 Tips to Resolve Your Tablets Touchscreen Problems

Fixing Touchscreen Issues in Android Phones

Touch screen is not supposed to be "calibrated" by users. All my family uses touchscreen smartphones and computers and NEVER anyone mentioned the need of calibrating a touchscreen. If you have some problem with your touchscreen, it is something beyond standard devide operation and you should take it for service, if it is on warranty, to site where it should be serviced

Calibrate through settings. Check if the flex of a touch sensors installed properly.

get sound back on mac air

It looks like your tablet isn't calibrated correctly. Go to the settings and look for touch screen calibration.

Hold the power down and press the -volume button down to reboot

Whoever used the term "calibrating an iPad" may have been referring to touch screen calibration.

Some touch screens need to be adjusted, or "calibrated", or the device may act as if you touched a different spot on the screen than you did. The iPad screen does not need to be calibrated.
If the iPad make a mistake about what spot you touched, the error may be due to:

• a defect or damage;
• a screen protector;
• a cold finger;
• a hand that is holding the iPad and inadvertently touching the screen;
• a finger that is inadvertently touching the screen.

You need to keep doing it till calibrated, happened to me but got it after a while.

try to soft reset it by engaging the reset button ..If it has such a button it should be hidden in a hole on the side and need to be pressed until restarts ..(it should be powered and on when you do this) ..
If there is no button ..it means it has something wrong with the touch screen function ...and you should try to see if the screen is not out of focus..and try to swipe it in a certain point ..and if it is indicated..try in near by locations ...If you manage to make it start you should look in the main menu for screen calibration ..and engage it ..this should make the touch screen work proper again .
In worse case you will need the firmware and reset it to factory settings ..