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USE THE INFORMATION BELOW TO ANSWER QUESTIONS 22 THRU 23In recent years home lighting technology...

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USE THE INFORMATION BELOW TO ANSWER QUESTIONS 22 THRU 23In recent years home lighting technology has changed dramatically due to the development of LightEmitting Diode (LED) bulbs. Although previously used mainly in traffic lights and although LEDbulbs are more expensive than incandescent bulbs, they use approximately 90% less energy andthey last up to 25 times longer than incandescent bulbs. It has been estimated that the averagehome saves $250 per year using LED bulbs rather than incandescent bulbs. One popularmanufacturer of LED bulbs claim that nearly all of their 75-watt LEDs will last for more than 25,000hours.Question 22Suppose that a small company purchases 300 of these 75-watt LEDs with a guarantee that 97% ofthem will last for more than 25,000 hours. Assuming the guarantee is correct, what is theprobability that at least 280 of them will last for more than 25,000 hours?0.96690.98450.97411 pts0.9997

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