Anull hypothesis states that the population proportion p of headache sufferers who have better pain relief with drug a than with another pain reliever equals 0.50. for a crossover study with 25 subjects, all 25 have better relief with drug a. if the null hypothesis were true, by the binomial distribution the probability of this sample result (which is the most extreme) equals (0.50 )superscript 25less than 0.001. in fact, this is the small-sample p-value for testing h0: pequals0.50 against ha: pgreater than0.50. does this p-value give (a) strong evidence in favor of h0 or (b) strong evidence against h0? explain why.