What sample size is required if you want to estimate p with an 99.5% confidence level and an error of no more than 0.08?
1 answer:
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Answer:
Part 1)
Part 2)
Part 3)
Part 4)
Step-by-step explanation:
step 1
Find the measure of angle C
we know that
The triangle ABC is a right triangle
so
Angle C is a right angle
therefore
step 2
Fin the measure of angle A
we know that
In the right triangle ABC
∠B+∠A=90° -----> by complementary angles
we have
substitute
step 3
Find the length side b
we know that
In the right triangle ABC
substitute the given values
step 4
Find the length side a
we know that
In the right triangle ABC
substitute the given values
The scale factor of dilation is .
When describing an enlargement you must state by how much the shape has been enlarged or reduced.
Area of triangle B =
= 0.5 x 2 x 3
= 3 units
Area of triangle A =
= 0.5 x 4 x 6
= 12 units
Scale factor =
=
=
Hence, the scale factor of dilation is .
Learn more about scale factor here:
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