Mathematics, 29.03.2021 18:30 pyromadestill
Construct a 95% con dence interval for the di erence between the mean lifetimes oftwo kinds of light bulbs, given that a random sample of 100 light bulbs of the rst kindlasted on the average 400 hours of continuous use and 100 light bulbs of the second kindlasted on the average 420 hours of continuous use. The population standard deviations areknown to be1
Answers: 2
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Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?
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If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9
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Find the slope of the line passing through a pair of points
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Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.
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Construct a 95% con dence interval for the di erence between the mean lifetimes oftwo kinds of light...
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