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Finding P-values.  In Exercises 5–8, either use technology to find the P-value or use Table A-3 to find a range of values for the P-value.

Tornadoes The claim is that for the widths (yd) of tornadoes, the mean is μ < 140 yd. The sample size is n = 21 and the test statistic is t = −0.024.

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