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Qusetion: A sample of 30 observations selected from a normally distributed population produced a sample variance of 5.8.
a. Write the null and alternative hypotheses to test whether the population variance is different from 6.0.
b. Using α = .05, find the critical value of χ2. Show the rejection and nonrejection regions on a chi-square distribution curve.
c. Find the value of the test statistic χ2.
d. Using the 5% significance level, will you reject the null hypothesis stated in part a?
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