Suppose ₁ and ₂ are true mean stopping distances at 50 mph for cars of a certain type equipped with two different types of braking systems. The data follows: m = 5, x = 115.3, s₁=5.05, n = 5, y = 129.9, and 52 = 5.31. Calculate a 95% CI for the difference between true average stopping distances for cars equipped with system 1 and cars equipped with system 2. (Round your answers to two decimal places.) USE SALT Does the interval suggest that precise information about the value of this difference is available? O Because the interval is so wide, it appears that precise information is available. O Because the interval is so wide, it appears that precise information is not available. O Because the interval is so narrow, it appears that precise information is not available. O Because the interval is so narrow, it appears that precise information is available.

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