Mathematics, 30.11.2019 01:31 jacob7542
Asample of 1600 computer chips revealed that 54% of the chips do not fail in the first 1000 hours of their use. the company's promotional literature claimed that more than 51% do not fail in the first 1000 hours of their use. is there sufficient evidence at the 0.05 level to support the company's claim?
Answers: 3
Mathematics, 20.06.2019 18:04
What does it mean by solve the exponential equation for x?
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Mathematics, 21.06.2019 18:00
What is the difference between the predicted value and the actual value
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Mathematics, 21.06.2019 18:40
2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?
Answers: 1
Asample of 1600 computer chips revealed that 54% of the chips do not fail in the first 1000 hours of...
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