Question

the salaries of the employees at four companies are summarized below. answer the questions about them. company a: the mean salary is $33,000 and the range of salaries is $43,000. company b: the mean salary is $28,000 and the range of salaries is $41,000. company c: the mean salary is $30,000 and the range of salaries is $42,000. company d: the mean salary is $24,000 and the range of salaries is $46,000. (a) based on the information above, which company has the lowest salaries on average? company a company b company c company d (b) based on the information above, which companys salaries have the least variability? company a company b company c company d

Explanation:

(a) Step1: Compare mean salaries

Compare the mean salaries of the four companies: Company A (\$33,000), Company B (\$28,000), Company C (\$30,000), Company D (\$24,000).
Since \(24000<28000<30000<33000\), Company D has the lowest mean salary.

(b) Step1: Compare ranges

Compare the ranges of the four companies: Company A (\$43,000), Company B (\$41,000), Company C (\$42,000), Company D (\$46,000).
Since \(41000 < 42000<43000<46000\), Company B has the smallest range. A smaller range indicates less variability.

Answer:

(a) Company D
(b) Company B