Let n = required random sample size.
Assume that the population standard deviation is known as σ.
Let m = sample mean.
At the 95% confidence level, the expected range is
(m - k(σ/√n), m + k(σ/√n))
where k = 1.96.
Therefore the error margin is 1.96(σ/√n).
Because the error margin is specified as 3% or 0.03, therefore
(1.96σ)/√n = 0.03
√n = (1.96σ)/0.03
n = 128.05σ²
This means that the sample size is about 128 times the population variance.
Answer:
Smallest sample size = 128.05σ², where σ = population standard deviation.
Answer:
25%
Step-by-step explanation:
6/24 = 0.25 = 25%
Given the function:
We can write the given function as follows:
So, y' will be as follows:
So, the answer will be: y' = 4x - 5 -12/x^5
You first have to know how long each bead is and if its inches, centimeters, ect.
Answer:
x + 10
Step-by-step explanation: