What portion of light bulbs will last more than 62 hours

Question

asked Mar 13, 2019 192k views

1 Answer

Phil Lord · Answer 1 · 2019-03-18T02:57:06+0000

Crystal Clear 60-watt light bulb that it advertises will last 1500 hours. Suppose that lifetimes of the light bulbs are approximately normally distributed with a mean of 1550 hours and a standard deviation of 57 hours.

What portion of light bulbs will last more than 62 hours

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

Please log in or register to add a comment.

No related questions found

Categories

Other Questions