create matlab code solving with Least Squares $($Polynomial Fit$)$ method

find the values of

$20$ km$/$hr

$50$ km$/$hr

$80$ km$/$hr

$100$ km$/$hr

$130$ km$/$hr

$150$ km$/$hr

from

Experimental Data

Speed $[$km$/$hr$]3045607590120$

Thinking $[$min$]6911151722$

Braking Car $[$min$]51221334886$

Braking Motorcycle $[$min$]249172782$