An article noted that it may be possible to accurately predict which way a penalty-shot kicker in soccer will direct his shot.¹ The study finds that certain types of body language by a soccer player - called "tells" - can be accurately read to predict whether the ball will go left or right. For a given body movement leading up to the kick, the question is whether there is strong evidence that the proportion of kicks that go right is significantly different from one-half. ¹"A Penalty Kicker's Cues", The Week, July 16, 2010, p. 21.

(a) What are the null and alternative hypotheses in this situation?

I have to use x, p, u in this part of the answer