The null hypothesis for the normal approximation for the sign test is that the probability of scores

Question:

The null hypothesis for the normal approximation for the sign test is that the probability of scores falling above and below the median equals what value? What type of probability is used to make the sign test?
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...