# Question

The EPA city/hwy mpg range for a Saturn Vue FWD automatic 5-speed transmission is 20 to 28 mpg.

(a) Estimate using Method 3 from Table 8.11.

(b) If you owned this vehicle, how large a sample (e.g., how many tanks of gas) would be required to estimate your mean mpg with an error of ±1 mpg and 90 percent confidence?

(a) Estimate using Method 3 from Table 8.11.

(b) If you owned this vehicle, how large a sample (e.g., how many tanks of gas) would be required to estimate your mean mpg with an error of ±1 mpg and 90 percent confidence?

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