Question
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
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 | Mean | Median | TrMean | StDev | SE Mean | Minimum | Maximum | Q1 | Q3 |
|---|---|---|---|---|---|---|---|---|---|
| 153 | 135.48 | 135.49 | 135.50 | 4.47 | 0.36 | 122.20 | 147.60 | 133.85 | 136.45 |
We are 99% confident that the true average ultimate tensile strength is greater than ksi.
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Linear Algebra With Applications
Authors: W. Keith Nicholson
7th Edition
978-0070985100, 70985103
