please help me with this using R :

When a fair coin is flipped, the probability of it landing either heads or tails is equal

likely. Steven's friend, Jim, claims to have a "lucky" quarter. The quarter, Jim says, has won him quite a bit of money in bets, since he says it lands heads for him more than probability warrants. For sake of completeness, Steven has Jim flip his coin 500 times in a row, and finds that it has landed heads 267 times. Jim says that since 267 is greater than 250, he has proof that his coin is "lucky". Using the 5 steps outlined in the lecture, perform the binomial test to check the alternative hypothesis that the probability of Jim's coin landing heads is greater than 50%, at a significance level of =.05.