A certain type of plastic sheeting is supposed to have a true mean thickness of 171 mils. Engineers are testing H0:μ=171 against H1:μ≠171. They take a simple random sample of thickness measurements...

A certain type of plastic sheeting is supposed to have a true mean thickness of 171 mils. Engineers are testing H0:μ=171 against H1:μ≠171. They take a simple random sample of thickness measurements from the sheeting and get x_=169 and s = 9 mils. Their P -value is 0.2160.

Should they reject their null hypothesis? Why or why not?

Options (Yes/No), because p-value is (high/low). Select 1 option per bracket parentheses.