Tire lifetimes: The lifetime of a certain type of automobile tire (in thousands of miles) is normally distributed with mean μ=41and standard deviation σ=4. Use the TI-84 Plus calculator to answer the following. (a) Find the 29th percentile of the tire lifetimes. (b) Find the 66th percentile of the tire lifetimes. (c) Find the first quartile of the tire lifetimes. (d) The tire company wants to guarantee that its tires will last at least a certain number of miles. What number of miles (in thousands) should the company guarantee so that only 4% of the tires violate the guarantee? Round the answers to at least two decimal places.

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