In each of the following problems, the sample size and the confidence level are given. Find the appropriate chi-square critical values for use in constructing a confidence interval for the population variance.
In each of the following problems, the sample variance, the sample size, and the confidence level are given. Assume the underlying population is normally distributed. Find the associated confidence interval for the population variance.
In each of the following problems, the sample variance, the sample size, and the confidence level are given. Assume the underlying population is normally distributed. Find the associated confidence intervals for the population variance and the population standard deviation.
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