Complex sentence: There is no "alternative hypothesis," (so only rejection of the null hypothesis is possible) and such data could have many causes--the data may instead be forged, or the coin flipped by a magician who intentionally alternated outcomes.
Split into simpler sentences: There is no "alternative hypothesis" (so only rejection of the null hypothesis is possible) and such data could have many causes. The data may instead be forged, or the coinmay be flipped by a magician who intentionally alternated outcomes.