Mathematics, 04.12.2019 00:31 welcome00
Researchers determined that 60 puffs tissues is the average number of tissues used during a cold. suppose a random sample of 100 puffs users yielded the following data on the number of tissues used during a cold: x = 52 and s = 22. suppose the alternative we wanted to test was h: u< 60. the correct rejection region for a = 0.05 is: reject h, ift < -1.9842. o reject h, ift< -1.6604. o reject h, if: > 1.6604. "o reject h, if > 1.9842 or z< -1.9842.
Answers: 1
Mathematics, 21.06.2019 13:50
At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)
Answers: 3
Mathematics, 22.06.2019 00:30
"which statement is necessarily true if bd is an altitude to the hypotenuse of right ? abc? a.) ? adb? ? bdc b.) ? adb~? bdc c.) abbc=acbd d.) ? bac? ? bdc"
Answers: 3
Mathematics, 22.06.2019 01:30
Talia grouped the terms and factored out the gcf of the groups of the polynomial 15x2 – 3x – 20x + 4. her work is shown below. (15x2 – 3x) + (–20x + 4) 3x(5x – 1) + 4(–5x + 1) talia noticed that she does not have a common factor. what should she do?
Answers: 1
Researchers determined that 60 puffs tissues is the average number of tissues used during a cold. su...
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