A sample of ultimate tensile strength observations (ksi) was taken. Use the accompanying descriptive statistics output...
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A sample of ultimate tensile strength observations (ksi) was taken. Use the accompanying descriptive statistics output from Minitab to calculate a 99% lower confidence bound for true average ultimate tensile strength, and interpret the result. (Round your answer to two decimal places.) N 153 Mean 135.31 Median 135.32 TrMean 135.33 StDev 4.44 SE Mean 0.36 Minimum 124.10 Maximum Q1 Q3 149.70 134.65 139.45 We are 99% confident that the true average ultimate tensile strength is greater than ksi. A sample of ultimate tensile strength observations (ksi) was taken. Use the accompanying descriptive statistics output from Minitab to calculate a 99% lower confidence bound for true average ultimate tensile strength, and interpret the result. (Round your answer to two decimal places.) N 153 Mean 135.31 Median 135.32 TrMean 135.33 StDev 4.44 SE Mean 0.36 Minimum 124.10 Maximum Q1 Q3 149.70 134.65 139.45 We are 99% confident that the true average ultimate tensile strength is greater than ksi.
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