Mathematics, 06.06.2020 21:04 crazyquestions71
Researchers suspect that myopia, or nearsightedness, is becoming more common over time. A study from the year 2010 showed 123 cases of myopia in 400 randomly selected people. Another study from the year 2019 showed 228 cases in 600 randomly selected people. We are going to do a hypothesis test to see if p1 = the proportion of people who have myopia in 2019 is equal to p2 = proportion of people who have myopia in 2010 at the 0.05 significance level.
null and alternative hypothesis ?
a. H0:P1=P2; Ha:P1≥P2
b. H0:P1=P2; Ha:P1≠P2
c. H0:P1≠P2; Ha:P1=P2
d. H0:P1≥P2; Ha:P1≠P2
Answers: 3
Mathematics, 21.06.2019 14:30
Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!
Answers: 1
Mathematics, 21.06.2019 19:00
The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)
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Mathematics, 21.06.2019 21:10
If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52
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Mathematics, 22.06.2019 01:00
Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work:
Answers: 3
Researchers suspect that myopia, or nearsightedness, is becoming more common over time. A study from...
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