Question

what is osmotic potential and water potential

Answer 1

Water potential is a measure of potential energy of water or the difference in potential energy between a given water sample and pure water.
Osmotic potential is decrease in the chemical or free energy of water due to decrease in water molecules per mole of a solution. It is essential for maintaining water relation to plant cells.

Answer 2

Answer

Two potential types of statistical error are Type I error (α, or level of significance), when one falsely rejects a null hypothesis that is true, and Type II error (β), when one fails to reject a null hypothesis that is false. ... Reducing Type I error tends to increase Type II error, and vice versa.