A management consulting company presents a three$-$day seminar on project management to various

clients. The seminar is basically the same each time it is given. However, sometimes it is presented to high$-$

level managers, sometimes to midlevel managers, and sometimes to low$-$level managers. The seminar

facilitators believe evaluations of the seminar may vary with the audience. Suppose the following data are

some randomly selected evaluation scores from different levels of managers who attended the seminar.

The ratings are on a scale from $1$ to $10,$ with $10$ being the highest. Determine whether there is a significant

difference in the evaluations according to manager level. Assume $=\mathrm{.}05.$ Discuss the business implications

of your findings.