Mathematics, 16.10.2019 23:00 smallp0720
Assume that sample mean x overbar and sample standard deviation s remain exactly the same as those you just calculated but that are based on a sample of nequals25 observations. repeat part a. what is the effect of increasing the sample size on the width of the confidence intervals?
Answers: 3
![IC[\mu, (1 - \alpha)\%] = \overline{x} \pm k\sqrt{Var(\overline{x})}](/tpl/images/0326/4845/d5e56.png)
is:
depends only on the number of observations, and the relationship is inverse. So if we increase the n the second term becomes smaller, and so the width of the interval decreases.
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Assume that sample mean x overbar and sample standard deviation s remain exactly the same as those y...
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