No because they aren't Fair
        
             
        
        
        
Answer: The quality and design of calculators improved dramatically from 2014 to 2016.
A new, safe method of memory enhancement became available for purchase. 
As the price of textbooks increased, more and more students turned to the used-book market or chose not to buy textbooks at all, instead using the copies on reserve in the library. 
Explanation: If textbook price increases , it might overstate the inflation in cost of going to college.
A new safe memory enhancement will be costly because of it's superior quality and technological progress. 
Similarly , new calculator will also be improved and superior. 
<em><u>Thus, the survey will reflect higher prices,</u></em>
<em><u></u></em>
 
        
             
        
        
        
Answer:
b. $140000.
Explanation:
We know that 
cost of finished goods in stock= (total production cost ÷ number of units produced)×number of units unsold
= [(170000+230000+160000)/8000]*(8000-6000)
= $140000
Option b) is the correct answer