Question

What is the relationship between Sample Size and the width of the Confidence Interval? Please explain further as to why.

Answer 1

As the sample size increases, the confidence interval width decreases. The same is true the other way: as the sample size decreases, the confidence interval width increases. So you have this inverse relationship between the two.

https://learn.bu.edu/bbcswebdav/pid-826911-dt-content-rid-2073768_1/courses/13sprgmetcj702_ol/week03/metcj702_W03S02T08d_sample.html