Mathematics, 07.05.2020 04:57 therealdest
The operations manager at a compact fluorescent light bulb (CFL) factory needs to estimate the mean life of a large shipment of CFLs. The manufacturer’s specifications are that the population standard deviation is 1,000 hours. A random sample of 64 CFLs indicated a sample mean life of 7,500 hours.
Construct a 95% confidence interval estimate for the popu- lation mean life of compact fluorescent light bulbs in this shipment.
Answers: 2
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Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?
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Jahdzia wears her winter coat when the temperature is colder than -4 degrees celsius. write an inequality that is true only for temperatures (t) at which jahdzia wears her winter coat.
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Mathematics, 22.06.2019 04:00
Ahealth-food producer has 250 samples of a new snack to distribute in the mall. the producer has to keep at least 50 samples for display in the health food for the product launch. how long will the samples last if consumers are taking the samples at a rate of 25 every hour
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The operations manager at a compact fluorescent light bulb (CFL) factory needs to estimate the mean...
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