# Finding Critical Values of X 2 A simple random sample of ten voltage levels is obtained….

Finding Critical Values of X2A simple random sample of ten voltage levels is obtained. Construction of a confidence interval for the population standard deviation σ requires the left and right critical values of X2 corresponding to a confidence level of 95% and a sample size of n = 10. Find the critical value of X2 separating an area of 0.025 in the left tail, and find the critical value of X2 separating an area of 0.025 in the right tail.

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