Mathematics, 15.04.2020 21:37 noslengerman
A personnel director in a particular state claims that the mean annual income is the same in one of the state's counties (County A) as it is in another county (County B). In County A, a random sample of 18 residents has a mean annual income of $ 40 comma 400 and a standard deviation of $ 8700. In County B, a random sample of 8 residents has a mean annual income of $ 39 comma 200 and a standard deviation of $ 6000. At alphaequals0.10, answer parts (a) through (e). Assume the population variances are not equal. Assume the samples are random and independent, and the populations are normally distributed.
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Mathematics, 21.06.2019 17:30
If jaime wants to find 60% of 320, which table should he use?
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Mathematics, 21.06.2019 23:30
Maren is buying carpet for her rectangular living room. the room is 4.8 yards wide and 5.2 yards long. how much carpet does she need to buy? enter your answer as a decimal in the box. yd2
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Mathematics, 21.06.2019 23:40
Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.
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Mathematics, 22.06.2019 02:20
Find the volume of the wedge cut from the first octant by the cylinder z=12-3y^2 and the plane x+y=2.
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A personnel director in a particular state claims that the mean annual income is the same in one of...
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