“What do you get if you cross a grocery clerk with a scientist?”/“Market research.”

A riddle on the term “market research” is:
   
Q: What do you get if you cross a grocery clerk with a scientist?
A. Market research.
   
The joke was printed in the book 3650 Jokes, Puns, and Riddles (2009).
   
         
Google Books
3650 Jokes, Puns, and Riddles
By Anne Kostick, Charles Foxgrover and Michael J. Pellowski
Edited by Michael Driscoll
New York, NY: Black Dog & Leventhal Publishers, Inc.
2009
Pg. 10:
What do you get if you cross a grocery clerk with a scientist?
Market research.
 
Twitter
Mark Whitaker‏
@MarkRWhitaker
“What do you get if you cross a grocery clerk with a scientist?  Market research.” - from a book of jokes my father-in-law brought to me.
11:57 PM - 22 Jul 2013
 
Twitter
Rina Muasaroh‏
@asaro_9
What do you get if you cross a grocery clerk with a scientist?
~Market Research~
#Puns #Riddles
10:13 AM - 13 Oct 2017 from Jakarta Capital Region, Indonesia