andnbspthe light bulb has an average lifetime of 1500 hours...

Question: andnbspthe light bulb has an average lifetime of 1500 hours...

Question details

The light bulb has an average lifetime of 1,500 hours with a standard deviation of 50 hours. How many of these light bulbs should Monash stock up so that it can guarantee that the light will be on for at least 9,600 hours with a probability of at least 97%