Why should training documentation reports be kept

Alarge university wanted to study the relationship between completing an internship during college and students' future earning potential. prom the same graduating class, they selected a random sample of 80 students who completed an internship and 100 students who did not complete an internship and examined their salaries five years after graduation. they found that there was a statistically higher mean salary for the internship group than for the noninternship group. which of the following interpretations is the most appropriate? a. there could be a confounding variable, such as student major, that explains the difference in mean salary between the internship and no internship groups.b. we cannot infer anything from these data since the distribution of salaries is likely right skewed.c. you cannot draw any valid conclusions because the sample sizes are different.d. more students should complete internships because having an internship produces a higher salary.

The green revolution is a scientific breakthrough that improved seeds for basic crops. how did the green revolution impact the supply of basic crops such as wheat and corn? the supply of wheat and corn increased. there was no impact on the supply of basic crops. the supply of basic crops did not change, but the quantity supplied of basic crops increased. the supply of wheat and corn decreased.

Which of the following statements is not correct? the stock of publicly owned companies must generally be registered with and reported to a regulatory agency such as the sec. when stock in a closely held corporation is offered to the public for the first time, the transaction is called "going public, or an ipo," and the market for such stock is called the new issue or ipo market. "going public" establishes a firm's true intrinsic value and ensures that a liquid market will always exist for the firm's shares. if you wanted to know what rate of return stocks have provided in the past, you could examine data on the dow jones industrial index, the s& p 500 index, or the nasdaq index.