Fair Coin? A coin is called fair if it lands on heads 50% of all possible tosses. You flip a game token 100 times and it comes up heads 61 times. You suspect this token may not be fair. (a) What is the point estimate for the proportion of heads in all flips of this token? Round your answer to 2 decimal places. (b) Construct the 90% confidence interval for the proportion of heads in all tosses of this token. Round your answers to 3 decimal places.