(Canada). A Junior Accountant earns an average salary of C$40,113 per year. People in this job generally don't have more than 10 years' experience. Pay for this job does not change much by experience, with the most experienced earning only a bit more than the least.
A diacritic in English is a glyph that modifies the sound of the character to which it is attached. Examples are na ve, r sum, and sak. In other fields, glyphs modify a letter to convey a specific meaning. Examples include: In Statistics the sample mean is denoted by x-bar (xÌ) and the sample proportion by p-hat (pÌ).
The two values of $p_1$ and $p_2$ are merely sample proportions and are not the true population proportion. In a usual two-proportion hypothesis, I would just use a pooled estimator for a $\hat{p}$ to get the ${ \sigma }_{ \hat { p } }$. However, the answer given to this question did not utilise the pooled estimator.