Yearly Income (In $1,000s)

Number

of Employees

20 - 242

25 - 2948

30 - 3460

35 - 3980

40 - 4410

a. What percentage of employees has yearly incomes of $35,000 ormore?b. Is the figure (percentage) that you computed in Part a anexample of statistical inference? If no, what kind ofstatistics does it represent?c. Based on this sample, the president of the company saidthat "45% of all our employees' yearly incomes are$35,000 or more." The president's statement representswhat kind of statistics?d. With the statement made in Part c, can we be assured thatmore than 45% of all employees' yearly incomes are atleast $35,000? Explain.e. What percentage of employees of the sample has yearly incomes of$29,000 or less?f. How many variables are presented in the above data set?g. The above data set represents the results of how many observations?