The sample size would be required is 400.
What is standard deviation?
A measure of a group of values' variance or dispersion in statistics is called the standard deviation. When the standard deviation is low, the values are more likely to fall within a narrow range, also known as the expected value, whereas when the standard deviation is high, the values tend to be closer to the mean.
The lowercase Greek letter sigma, which stands for the population standard deviation, or the Latin letter s, which stands for the sample standard deviation, are most frequently used in mathematical equations and texts to represent standard deviation. Standard deviation is also sometimes referred to as SD.
suppose that in a random sample of size 100, the standard deviation of the sampling distribution of the sample proportion is 0.08.
Since we know the weights from the population, we can find the population mean.
μ = 0.08
if a researcher wanted to reduce the standard deviation to 0.04.
Hence, The sample size would be required is 400.
Learn more about standard deviation, by the following link.
https://brainly.com/question/12402189
#SPJ4
