QUESTION 18

All of the next several questions refer to this situation and analysis (until a new situation is given.) Technicians suspect that one of your web servers has much greater consistency in response times than another. You take a sample of 300 response times from server 1, and find a standard deviation of 48.9; a sample of 275 from server 2 gives a standard deviation of 43.5. The next several questions refer to finding a 95% confidence interval for the variance in server 1's response times. Question: What is the chi-square value for the left side of the interval?

1 points

QUESTION 19

(Refer to the situation above.) What is the lower limit of the confidence interval for variance?

1 points

QUESTION 20

(Refer to the situation above.) What is the upper limit of the confidence interval for variance?

1 points

QUESTION 21

(Refer to the situation above.) What is the lower limit of the confidence interval for standard deviation?

1 points

QUESTION 22

(Refer to the situation above.) What is the upper limit of the confidence interval for standard deviation?