A production manager tests 10 toothbrushes and finds that their mean lifetime is 450 hours. She then designs a sales package for this type of toothbrush. It states that consumers can expect the toothbrush to last approximately 460 hours. This is an example of what phase of inferential statistics?

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

Question

A production manager tests 10 toothbrushes and finds that their mean lifetime is 450 hours. She then designs a sales package for this type of toothbrush. It states that consumers can expect the toothbrush to last approximately 460 hours. This is an example of what phase of inferential statistics?

 		A.	Data gathering
 		B.	Probability-based inference
 		C.	Data analysis
 		D.	Data organization

anonymous · Answer

i think its either c or b and im stuck