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Akimi4 [234]
3 years ago
10

Suppose you draw a single sample of size 64 from a large population and measure its sample proportion. What is the margin of err

or for 95% confidence?
(a) 5% (b) 6.25% (c) 12.5% (d) 95%
Mathematics
1 answer:
MissTica3 years ago
3 0

Answer:

(b) 6.25%

Step-by-step explanation:

Margin of error is the chances of percentage deviation that may differ from original population data. The margin of error for 95% confidence interval can be 6.25%. To find this we divide population standard deviation with square root of sample size. The margin of error is the estimate of the deviation from actual and real value of population.

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Anyone know the area of the blue area?
Studentka2010 [4]
First, find the area of the larger sector (the 360-130=230 degree sector), then add the area of the triangle.
area of the larger sector:(230/360)π*11.1²≈247.17
area of the triangle when two sides and the angle between the two sides are given: (absinФ)/2. In this case, a=11.1, b=11.1, Ф=130
(11.1*11.1*sin130)/2≈47.19
the total area is 247.17+47.19≈294.4
Please use your calculator to double check my numbers.
4 0
3 years ago
21-26 only please help quickly I need answer quickly
yuradex [85]
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8 0
3 years ago
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aev [14]
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6 0
3 years ago
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Use the quadratic formula to solve x² + 8x + 9 = 0. What are the solutions to the equ ation? Round irrational solutions to the n
IrinaVladis [17]
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3 0
3 years ago
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Please help steps thx
ExtremeBDS [4]

Answer:

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Step-by-step explanation:

I'm not really sure for Q17 but I do know Q18.

Q18. Volume of cuboid = Length×Breadth×Height

=12×4×5

=240 cubic metres

hope it helps!!!

8 0
2 years ago
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