if we need to decrease the standard deviation of the sampling distribution by half what do we need to do to the sample size

The answer is below

Step-by-step explanation:

For a normal distributed population with a mean (μ), and a standard deviation (σ), if a sample size of n is selected from the population, the mean of the sample () =  μ and the standard deviation of the sample () =

Let the normal distribution population have a standard deviation of σ. If the standard deviation is to be decreased by half, the sample size (n) needed is:

To decrease the standard deviation of the sampling distribution by half we need a sample size of 4

the ratio would be 4: 3, the four being for jackson, and the three being not for him.