Question

Problem 4-8 points 25 As an engineer, you know that variability in a process or system is often unfavorable. 14,152 8 You're examining the tensile strength of lumber used in home construction, and you'd like to know if the standard deviation of the modulus of elasticity of a particular brand of lumber is less value approach and compare with 95% confidence. 1,206.5 You collected a sample, whose sample statistics are found at right. Use the p- 52 73 741.3 2665 a. test statistic p-value conclusion w.r.t. Ho 52,23

Answer 1

Selution H ere tto: 1S50 At 95% confidarnce chitical value tjene cal %-u, sul 3 > 13-843 So do mot ried 113-Z48 2 13. 49