Mathematics, 23.07.2019 17:30 dontcareanyonemo
The life in hours of a 75-watt light bulb is known to be normally distributed with σ = 25 hours. a random sample of 20 bulbs has a mean life of x = 1014 hours. (a) construct a 99% two-sided confidence interval on the mean life. (b) construct a 99% lower-confidence bound on the mean life. compare the lower bound of this confidence interval with the one in part (a).
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Mathematics, 21.06.2019 22:30
Need same math paper but the back now i hope your able to read it cleary i need with hw
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Mathematics, 21.06.2019 23:30
Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.
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Mathematics, 22.06.2019 00:30
Jo divides a candy bar into eight equal pieces for her children to share she gives three pieces to sam three pieces to leslie and two pieces to margie rose the two month old baby does it doesn't get any what fraction shows how muchw candy each of the four children got. what's the answer to my question
Answers: 2
The life in hours of a 75-watt light bulb is known to be normally distributed with σ = 25 hours. a r...
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