At a computer manufacturing company, the actual size of computer chips is normally distributed with a mean of 1 centimeter and a standard deviation of 0.1 centimeter. A random sample of 12 computer chips is taken. What is the standard error for the sample mean?

You graduate from college and get your first job. You open a Roth IRA with $2,000 at the age of 25. You

invest $3,000 at age 26, $4,000 at age 27, and $5,000 at age 28. You then receive a promotion that brings your income to a level that disqualified you from making further contributions to the Roth IRA. Construct a table that shows how much will you have in your IRA at the age of 60 if you had invested in an account that paid an average yield of 8 percent.

The fact that a large company can enjoy savings from producing goods in high volume that are not available to a small company is called ________

A) economies of scale B) horizontal integration C) vertical integration D) economies of scope