Answer:
(0.6231 , 0.6749)
Step-by-step explanation:
With the information we have, it is impossible to solve the exercise, therefore I was looking for information to complete it and we have to:
the sample proportion is 64.9%, or 0.649 plus the sample size is 1300 (n)
Now, we have that the standard error is given by:
SE = (p * (1 - p) / n) ^ (1/2)
replacing
SE = (0.649 * (1 - 0.649) / 1300) ^ (1/2)
SE = 0.0132
Now we have that confidence level is 95%, hence α = 1 - 0.95 = 0.05
α / 2 = 0.05 / 2 = 0.025, Zc = Z (α / 2) = 1.96
With this we can calculate margin of error like so:
ME = z * SE
ME = 1.96 * 0.0132
ME = 0.0259
Finally the interval would be:
CI = (p - ME, p + ME)
CI = (0.649 - 0.0259, 0.649 + 0.0259)
CI = (0.6231, 0.6749)
Answer:
100%
Step-by-step explanation:
The percentage that describes the original value we are calculating from is 100%
This represents the original value that we are working with.
For example if we are to decrease by 10%, it means we are to be left with 90%
If also we are to increase by 10%, it means that we are to be left with 110%
Answer:
Subtracting between the lowest and highest numbers.
Step-by-step explanation:
Answer: 200, 160
Step-by-step explanation:
Answer:
y = 0
Step-by-step explanation:
y - y₁ = m(x - x₁)
y - (7) = 0(x - (-2))
y - 7 = 0(x + 2)
y - 7 = 0
y = 7