Mathematics, 19.12.2019 00:31 emilylittle2442
Aconsumer claims that the mean lifetime of a brand of fluorescent bulbs is less than1500 hours. she selects 25 bulbs and finds the mean lifetime to be 1480 hours with the standard deviation of 80 hours. if you were to test the consumer's claimat the 0.05 significance level, what would you conclude?
Answers: 1
Mathematics, 21.06.2019 19:30, sotoamerica0814
What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4
Answers: 1
Mathematics, 22.06.2019 00:30, amc9639
Ican interpret and represent the remainder in division calculations sensibly for the context (eg if we wont to know how many 40 seat buses will be needed to transport 170 students for on excursion, we divide 170 by 40 and realise buses and another smaller vehicle to that we need 4 transport 10 more students) solve the following questions. show your work! 11) the zoo had 420 butterflies that needed to be transported to a new enclosure. the boxes that the butterflies would be moved in only hold 80 butterflies in each. how many boxes would they need? 2 12) each classroom in the school can have exactly 25 students, if there are 345 students in the school how many full classrooms are there?
Answers: 2
Aconsumer claims that the mean lifetime of a brand of fluorescent bulbs is less than1500 hours. she...
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