Suppose you want to investigate the relationship between a dependent variable Y and two potential explanatory variables X1 and X2. Is the R2 value for the equation with both X variables included necessarily at least as large as the R2 value from each equation with only a single X? Explain why or why not. Could R2 value for the equation with both X variables included be larger than the sum of the R2 values from the separate equations, each with only a single X included? Is there any intuitive explanation for this?

You are president of a large corporation. at a typical monthly meeting, each of your vice presidents gives standard area reports. in the past, these reports have been good, and the vps seem satisfied about their work. based on situational approach to leadership, which leadership style should you exhibit at the next meeting?

Which of the following is likely not a benefit of requiring a grand jury to listen to and examine all of the evidence against a person suspected of committing a serious crime and then independently deciding whether or not to hand down an indictment? 1.the grand jury system provides the accused another safeguard against being sent to trial and facing conviction based on flawed evidence. 2.the members of the grand jury are drawn from the community and are empowered to render independent decisions about whether or not the government has collected enough evidence to bring an individual to trial. 3.the grand jury’s decision can provide prosecutors insight into what is necessary to build a sufficient case if a similar crime is presented later. 4.the grand jury is impaneled to rubber-stamp prosecutors’ cases, which makes it possible for more cases to reach trial.

One of the benefits of a well designed ergonomic work environment is low operating costs is true or false