Multiple Choice
Quality control is an important issue at ACME Company which manufactures light bulbs.In order to conduct testing of the life hours of their light bulbs,they randomly sampled nine light bulbs and measured how many hours they lasted (mean = 346.6) .378,361,350,375,200,391,375,368,321 What is the variance?
A) 342.43
B) 3424.3
C) 58.5
D) 191
E) 10609
Correct Answer:
Verified
Correct Answer:
Verified
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