Light bulbs of a certain type are advertised as having an average lifetime of 800 hours. The price of these bulbs is very favorable, so a potential customer has decided to go ahead with a purchase arrangement unless it can be conclusively demonstrated that the true average lifetime is smaller than what is advertised. A random sample of 50 bulbs was selected, the lifetime of each bulb determined, and the appropriate hypotheses were tested using MINITAB, resulting in the accompanying output. 
What conclusion would be appropriate for a significance level of .05? A significance level of .01?
Definitions:
Pain
A negative sensory and emotional reaction related to either existing or impending bodily injury, or explained as if such injury has occurred.
Electromyography
A diagnostic procedure to assess the health of muscles and the nerve cells that control them (motor neurons) by recording the electrical activity produced by skeletal muscles.
Abbreviation
The shortened form of a word or phrase used to simplify writing usually followed by a period.
Total Body Weight
The overall mass of an individual, measured in units of pounds or kilograms.
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