Information provided by the manufacturers of school buses owned by the lincolnville school disctrict suggests the mean maintenance cost per year is $4,400 per bus with a standard deviation of $1,000. compute the mean maintenance cost for lincolnville buses. does the lincolnville data seem to be in line with that reported by the manufacturer?

Email viruses are typically launched by people who modify header information to hide their identity. brightmail's enrique salem says that in the future, your email reader will authenticate the sender before putting hte message in your inbox. that way, you will know the source of all the emails you read. alan nugent of novell says, "i'm kind of a fan of eliminating anonymity if that is the price for security." will eliminating anonymity make computers more secure?

Almost 80% of business owners are clueless about the competition, resulting in a) lost market share and customers. b) needless lawsuits. c) uninspired products. d) lack of perseverance

You are purchasing a bond that currently sold for $985.63. it has the time-to-maturity of 10 years and a coupon rate of 6%, paid semi-annually. the bond can be called for $1,020 in 3 years. what is the yield to maturity of this bond?