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3 years ago

8

430 randomly selected light bulbs were tested in a laboratory, 224 lasted more than 500 hours. Find a point estimate of the prop

ortion of all light bulbs that last more than 500 hours

1 answer:

Ray Of Light [21]3 years ago

6 0

The estimated portion of light bulbs that last more than 500 hours will be
x=∑xn=224/430=0.521=52.1%

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