Can a mathematically sound prediction interval have a negative lower bound?

How to make this letter sound Shakespearean?!?

• I wrote this letter but it does not sound at all Shakespearean! I tried but obviously failed. Could someone please help me make this letter sound like Shakespears time? My Dearest Lady Macbeth, I have some unfortunate news. Do you recall a few days ago when Banquo and I meet the three witches who told us I was going to be the thane of Cawdor and the King? The witches also hailed Banquo ... His descendents would be King as well. To be the King is nothing if I am not safe as the King. My fears of Banquo stick deep, and in his royalty of nature reins that of which he would be feared. I had to act in safety. He was hailed to a line of kings. All I could think of was Banquo’s son becoming King and so on. I could not let that happen, my Lady! So the deed is done. Banquo lives no more and his son is not to be seen. I called upon two murderers which whom Banquo was their enemy. We debated the situation and it was settled. We had to vanish Banquo and his son from the world. I sent the murderers out to look for them both on their way back to the banquet and they attacked in the middle of the dark. But you see, my Lady, something went wrong. Banquo died, the murderers killed him, but his son, Fleance, survived and fled the scene! I have no estimation of where he might be and I am now cabined, cribbed, confined, bound in to saucy doubts and fears. We must talk more about this for Banquo’s ghost appears in my thrown! I feel it in my bones that something awful will happen. I can see it! Lady Macbeth we need to think of a scheme and quick. Meet me in the study at eight o’clock sharp. It is there that we will figure things out. Macbeth

• Answer:

  Yesterday, someone responded to a similar question with a website. You can search Yahoo Answers or Google "write like Shakespeare" or something similar.