Mathematics, 20.04.2021 16:20, skater9919
A brand of light bulbs has a mean lifetime of 1,500 hours and a standard deviation of 150 hours. A sample of 100 light bulbs gave a mean lifetime of 1,400 hours. What is the margin of error for the sample?A brand of light bulbs has a mean lifetime of 1,500 hours and a standard deviation of 150 hours. A sample of 100 light bulbs gave a mean lifetime of 1,400 hours. What is the margin of error for the sample?
Answers: 2
Mathematics, 21.06.2019 16:20, tmantooth7018
The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.
Answers: 3
Mathematics, 21.06.2019 22:20, stalley1521
Which of the following is missing in the explicit formula for the compound interest geometric sequence below?
Answers: 1
A brand of light bulbs has a mean lifetime of 1,500 hours and a standard deviation of 150 hours. A s...
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