wing compressive strengths (in psi). 3223      3329      3269      3244      3258      3325      3204      3296      3411 3316      3272      3302      3342      3307      3205      3208      3311      3291 a. Construct a 95% confidence interval for mean strength. b. Construct a 99% confidence interval for mean strength. c. Note what happens to the

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