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A Professor Wants to Compare the Variances of Scores Between

Question 27

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A professor wants to compare the variances of scores between two sections of classes. The students in each section took the same test. The random samples yield sample variances of A professor wants to compare the variances of scores between two sections of classes. The students in each section took the same test. The random samples yield sample variances of = 203.15 and = 474.42 for samples of n<sub>1</sub> = 13 and n<sub>2</sub> = 16, respectively. Which of the following is a 99% confidence interval for the ratio of the population variances? A) [0.1540, 2.7809] B) [0.1008, 2.0217] C) [0.1386, 3.0895] D) [0.0907, 1.8198] = 203.15 and A professor wants to compare the variances of scores between two sections of classes. The students in each section took the same test. The random samples yield sample variances of = 203.15 and = 474.42 for samples of n<sub>1</sub> = 13 and n<sub>2</sub> = 16, respectively. Which of the following is a 99% confidence interval for the ratio of the population variances? A) [0.1540, 2.7809] B) [0.1008, 2.0217] C) [0.1386, 3.0895] D) [0.0907, 1.8198] = 474.42 for samples of n1 = 13 and n2 = 16, respectively. Which of the following is a 99% confidence interval for the ratio of the population variances?


A) [0.1540, 2.7809]
B) [0.1008, 2.0217]
C) [0.1386, 3.0895]
D) [0.0907, 1.8198]

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