Companies often use the service of business consultants to handle their annual tax report. Reasons are business consultants understand the steps and documentation requirements. Businesses face complicated tax regulations and penalties for tax errors are costly. According to a business consultant, 25% of all business annual tax reports contained errors that resulted in a tax penalty to the owner of the business. Tax penalty for a sample of 16 business owners follows:

450 1010 890 700 1350 350 300 1200

2010 230 640 350 420 270 370 620

a.What is the mean tax penalty for improperly filed employment tax returns?

b.What is the standard deviation?

c.Is the highest penalty, $2010, an outlier?

Describe and determine the shape of the data distribution