A gambler claims that when an ancient coin is tossed, tails comes up too often. As an experiment, the coin is tossed 900 times. It comes up tails on 785 of these tosses. Is this strong evidence for the gambler's claim? a) State the null (H0) and alternative (Ha) hypotheses. b) If the null hypothesis is true, the sample mean has approximately a Normal distribution with mean __________ and standard deviation __________________. c) Give the standard score for the data. d) Find the P-value for this significance test. e) Summarize the conclusion in the context of this problem.