A production manager tests 10 light batteries and finds that their mean lifetime is 468 hours. She then designs a sales package for this type of bulb stating that consumers can expect it to last approximately 500 hours. This is an example of what phase of inferential statistics?

A. Probability-based inference
B. Data organization
C. Data analysis
D. Data gathering

Question

A production manager tests 10 light batteries and finds that their mean lifetime is 468 hours. She then designs a sales package for this type of bulb stating that consumers can expect it to last approximately 500 hours. This is an example of what phase of inferential statistics?

A.	Probability-based inference
 		B.	Data organization
 		C.	Data analysis
 		D.	Data gathering

anonymous · Answer

Looks like probability-based.  Not much data to analyze, little gathered or organized, so that leaves A as the answer.