Question: The following tables provide information about the top women-owned businesses in the U.S. The first table gives year 2000 revenue in millions of dollars and number of employees for Pennsylvania women-owned companies with year 2000 revenues of $70 million or higher. The second table gives the same information for Michigan women-owned companies with year 2000 revenues of $70 million or higher.

a. Use a calculator or computer to compute the mean and standard deviation of the year 2000 revenue for the Pennsylvania companies in the first table.

b. Use a calculator or computer to compute the mean and standard deviation of the year 2000 revenue for the Michigan companies in the second table.

c. Explain what the values you calculated in parts a and b of this exploration tell you about the data sets.

d. How would the mean and standard deviations change if the largest data value in each set were removed?

e. Find the mean and the standard deviation of the number of employees for the Pennsylvania companies in the first table.

f. Find the mean and the standard deviation of the number of employees for the Michigan companies in the second table and compare to your results in part e of this exploration.