Answer Happy

Q3- 1 - Define the following statistical measures a. Skewness, b. Kurtosis c. R-Sq d. R-Sq (adjusted) 2- Explain the values of these measures shown if Figures 1, 2, 3, and 6 from the case study posted on Moodle. Frequency Figure 1: Customer Satisfaction for the Company, 2001-2003 Anderson-Darling Normality Test A-Squared: P-Value: 68 Frequency 70 T T 74 Customer Satisfaction 76 0 T T I T T 83.3 84.3 85.3 86.3 87.3 88.3 89.3 I I I Customer Satisfaction 6.1222 -0.01193 -0.07830 -0.06921 Mean 72.6389 Standard Deviation 2.2752 Variance 5.17673 Skewness -1.8E-01 Kurtosis -8.3E-01 N 36 Minimum 1st Quartile Median 3rd Quartile Maximum Figure 3: Customer Satisfaction for Best-in-Class Companies, 2001-2003 Anderson-Darling Normality Test A-Squared: P-Value: 0.419 0.311 68.0000 70.6750 72.6500 74.8500 76.5000 Mean Standard Deviation Variance Skewness Kurtosis N Minimum 1st Quartile Median 3rd Quartile Maximum 0.1927 0.02974 0.01085 0.02324 Figure 2: Customer Satisfaction for Average Companies, 2001-2003 Anderson-Darling Normality Test A-Squared: P-Value: 0.354 0.444 87.2028 1.2385 1.53399 -7.1E-01 1.64696 36 83.3000 86.4250 87.1500 88.0750 89.8000 Figure 6: Model Characterizing the Influence of Call Center Predictor Coefficient SE Ceofficient T P Constant 31.76 0.000 Transfer -0.40 0.691 Wait Time -7.21 0.000 Service -2.98 0.006 69 New Account B-Best=6.12-0.0119 Transfers B-Best -0.0783 Wait Time B-Best -0.0692 Service Time B-Best S=0.05848 R-Sq=62.1% R-Sq (adjusted) = 58.6% T T 71 73 75 77 Customer Satisfaction T 79 Mean 76.4139 Standard Deviation 2.5532 Variance 6.51894 -1.09916 1.47779 36 68.5000 75.4250 76.7000 78.6250 80.3000 Skewness Kurtosis N 0.819 0.031 Minimum 1st Quartile Median 3rd Quartile Maximum