Question: Consider a 95% confidence interval for mean Spent versus a 99% confidence interval for mean Spent. The ratio of the length of the 99% interval

Consider a 95% confidence interval for mean Spent versus a 99% confidence interval for mean Spent. The ratio of the length of the 99% interval to the length of the 95% interval is which of the following?

a. 1.47

b. 1.15

c. 1.32

d. 0.75

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