A company has developed a new light bulb that seems to burn longer than most residential bulbs. To determine how long these bulbs burn, the company randomly selects a sample of these bulbs and burns them in the laboratory. The Excel output shown here is a portion of the analysis from this effort. Discuss the output.
Bulb Burn
Mean ................. 2198.217
Standard deviation ............. 152.9907
Count .................. 84
Confidence level (90.0%) ......... 27.76691