When constructing confidence intervals for $\sigma$ based on $s$, it requires that the population we are sampling has roughly the shape of __________.
A) a normal distribution
B) a straight line
C) a uniform distribution
D) a chi-square distribution

Question

Quizplus · Accepted Answer

When constructing confidence intervals for the population standard deviation ($\sigma$) based on the sample standard deviation ($s$), it is required that the population from which we are sampling has roughly the shape of a normal distribution. This is because the method relies on the assumption that the sample comes from a normally distributed population for the chi-square distribution to be applicable in calculating the confidence interval for $\sigma$.

When Constructing Confidence Intervals For σ\sigmaσ Based On sss , It Requires That the Population We Are Sampling Has

When Constructing Confidence Intervals For $\sigma$ Based On $s$ , It Requires That the Population We Are Sampling Has