According to a national business travel association a 2010
survey, the average salary of a travel management professional is
$96,850. Assume that the standard deviation of such salaries is
$30,000. Consider a random sample of 50 travel management
professionals and let Xbar represent the mean salary for the
sample.
A. What is u xbar.
B. What is Standard deviation of x bar.
C. Describe the shape of the distribution.
D. Find the z-score for the value of xbar= 89,500
E....