If you're getting some carpet installed in your house and your wondering how long it should take to install well, I always went by 10 yards per hour. now some carpet might take you longer. some carpet might be a lot faster. But you can almost ballpark figure for 10 yards per hour per guy.
15 by 14 is 210 Sq ft which is 23.33 yards If installation is 5$ a yard Pad is 3$ a yard. Carpet you get a 12 $ a yard carpet (med. Grade) So right at about 500$ is what you'd be looking at