The article Acceptable Noise Levels for ConstructionSite Offices (Building Serv. Engr

Chapter 13, Problem 25

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The article Acceptable Noise Levels for ConstructionSite Offices (Building Serv. Engr. Res. Tech., 2009:8794) analyzed responses from a sample of 77 individuals,each of whom was asked to say whether aparticular noise level (dBA) to which he/she had beenexposed was acceptable or unacceptable. Here is dataprovided by the articles authors:Acceptable:55.3 55.3 55.3 55.9 55.9 55.9 55.9 56.1 56.1 56.1 56.156.1 56.1 56.8 56.8 57.0 57.0 57.0 57.8 57.8 57.8 57.957.9 57.9 58.8 58.8 58.8 59.8 59.8 59.8 62.2 62.2 65.365.3 65.3 65.3 68.7 69.0 73.0 73.0Unacceptable:63.8 63.8 63.8 63.9 63.9 63.9 64.7 64.7 64.7 65.1 65.165.1 67.4 67.4 67.4 67.4 68.7 68.7 68.7 70.4 70.4 71.271.2 73.1 73.1 74.6 74.6 74.6 74.6 79.3 79.3 79.3 79.379.3 83.0 83.0 83.0Interpret the accompanying Minitab logistic regression output, and sketch a graph of theestimated probability of a noise level being acceptable as a function of the level.Logistic regression table for Exercise 2595% CIPredictor Coef SE Coef Z P Odds Ratio Lower UpperConstant 23.2124 5.05095 4.60 0.000noise level 20.359441 0.0785031 24.58 0.000 0.70 0.60 0.81