AutoTrader.com would like to test if a difference exists in the age of three different types of vehicles currently on the road: trucks,cars,and vans.The following data represent the age of a random sample of trucks,cars,and vans. 
The mean square for treatments MSTR for these observations is ________.
Definitions:
Current Ratio
This ratio indicates how well a business can settle its short-term debts with assets that are readily available.
Acid-test Ratio
A stringent indicator of a company’s short-term liquidity, calculated by dividing liquid assets by current liabilities, excluding inventory.
Debt-to-equity Ratio
The ratio that indicates the mix between shareholders' equity and debt in the capital structure used to finance assets.
Receivable Turnover
A financial metric that measures how efficiently a company collects on its accounts receivable, calculated as sales divided by accounts receivable.
Q17: Consider the following simple linear regression model:
Q27: A new sales training program has been
Q33: Over the past 30 years,the sample standard
Q43: The Boston public school district has had
Q47: Costco sells paperback books in their retail
Q57: A statistics student is asked to estimate
Q60: In the following table,likely voters' preferences of
Q67: Expedia would like to test if the
Q84: A newly hired basketball coach promised a
Q108: The following frequency distribution shows the monthly