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

Answer 1

I think its A? but not sure ...

Answer 2

@gypsy1274

Answer 3

@GoldPhenoix

Answer 4

nvm I got it

Answer 5

i think a also :P but i not sure