I keep being given the wrong answers for this

Problem 18-17 (Algo) A priority waiting system assigns arriving customers to one of four classes Arrival rates (Poisson) of the classes are shown in the following table: Use Table 18.4. Arrivals per Hour Class 1 2 3 4 Five servers process the customers, and each can handle 5 customers per hour. a. What is the system utilization? (Round your answer to 2 decimal places.) Answer is complete and correct. 0.92 b. What is the average wait for service by customers in the various classes? How many are waiting in each class, on average? (Round your answers to 3 decimal places.) Answer is complete but not entirely correct. FFEE W W 0.045 0.3503 0 005 0.005 WA 1.470 X 0.250 LI L L3 Le 0.2008 c. If the arrival rate of the second priority class could be reduced to 4 units per hour by shifting some arrivals into the third priority class, how would your answers to part bchange? (Round your answers to 3 decimal places.) Answer is not complete. 0.005 X W W W W Answer is not complete. 1.470 4 L2 Ly La 0.002 TABLE 18.4 Infinite-source values for Lg and Po given Nu and M M Lq La LO 0.15 0.026 S50 IT 2 0.477 290 6 0.021 100 2 0.001 S60 3 0.066 327 2.4 3 2.589 056 0.20 1 0.050 SOO 4 0.011 332 4 0.431 083 2 0.002 SIS 1.2 2 0.675 250 5 0.105 LOS9 0.25 1 0.083 750 0.094 294 6 0.027 090 2 0.004 .778 4 0.016 300 7 0.007 091 0.30 0.129 .700 5 0.003 301 2.5 3 3.511 .045 2 0.007 .739 1.3 2. 0.951 212 4 0.533 074 0.35 1 0. ISS 650 3 0.130 264 5 0.130 OSO 2 0.011 702 4 0.023 271 6 0.034 082 0.40 1 0.267 600 5 0.004 272 7 0.009 032 2. 0.017 667 1.4 2 1.345 176 2.6 3 4933 035 0.45 1 0.368 .550 3 3 0.177 236 4 0.655 065 2 0.024 633 4 0.032 245 S 0.161 072 3 0.002 637 5 0.006 246 6 0.043 .074 0.50 1 0.500 500 1.5 2 1.929 143 7 0.011 074 2 0.033 .600 3 3 0.237 211 2.7 3 7354 025 3 0.003 606 4 4 0.045 221 4 0.SH 057 0.55 1 0.672 450 5 0.009 223 5 0.198 065 2 0.045 569 1.6 2 2544 H11 6 6 0.053 067 0.55 0.672 450 5 0.009 223 S 0.198 2005 2 0.045 569 1.6 2 2.844 6 0.053 067 3 0.004 576 3 0.313 187 7 0.014 .067 0.60 1 0.900 400 4 0.060 . 1992.5 3 12.273 016 2 0.059 538 5 0.012 201 2 1.000 050 3 0.006 545 1.7 2 4.426 OSI 5 0.241 058 0.65 1 1.207 350 3 0.409 166 6 0.066 060 2 0.077 509 4 0.080 180 7 0.01S .061 3 0.005 521 5 0.017 19229 3 27.193 00S 0.70 1 1.633 .300 1.8 2 7.674 053 4 1.234 044 2 0.098 481 3 0.532 146 5 0.293 052 3 0.011 495 4 0.105 162 6 0.051 054 0.75 1 2.250 250 5 0.023 165 7 0.023 .055 2 0.123 455 1.9. 2 17.587 026 3.0 1.528 035 4 5 3 0.015 471 3 0.6SS 128 5 0.354 047 0.80 1 3.200 200 4 0.136 145 6 0.099 049 2 0.152 429 5 0.030 149 7 0.028 050 3 0.019 447 6 0.007 149 S 0.005 050 0.85 1 4.817 150 2.0 3 0.889 HI 3.1 4 1.902 032 2 0.187 404 4 0.174 130 5 0.427 042 3 0.024 425 5 0.040 134 6 0.120 044 4 0.003 427 6 0.009 135 0.035 045 0.90 1 8.100 100 2.1 1.149 096 $ 0.010 045 0.901 3.100 100 2:1 3 3 1.149 096 S 0.010 045 2 0.229 379 4 0.220 117 3 3.2 4 2.386 027 3 0.030 403 5 0.052 121 5 0.513 1037 4 0.004 406 6 0.012 122 0.145 040 0.95 1 IS.050 050 2.2 3 1.491 OS1 7 0.043 040 2 0.277 356 4 4 0.277 105 CO 0.012 041 3 0.037 383 5 0.066 109 3.3 4 3.027 023 4 0.005 356 6 0.016 111 5 0.615 033 1.0 2 0.333 .333 2.33 1.951 06S 6 0.174 036 3 0.045 364 4 0.346 .093 7 0.052 037 4 0.007 367 5 0.084 .099 S 0.015 037 3.4 4 3.906 019 4.3 CON 0.289 130 5.2 . 6 4.301 003 5 0.737 029 0.097 2013 7 1.OSI 2005 6 0.209 032 9 0.033 014 S 0.368 005 7 0.063 033 IO 0.011 2014 9 0.135 .005 S 0.019 033 4.4 5 5.265 2006 10 0.049 2005 3.5 4 5.165 015 6 1.075 010 11 0.01S 006 in 0.882 026 7 0.337 012 5.3 6 5.303 003 6 0.245 029 S 0.114 012 7 1.249 004 7 0.076 .030 9 0.039 012 CO 0.422 005 S 0.023 030 10 0.013 012 9 0.155 2005 9 0.007 030 4.5 5 6.862 005 10 0.057 005 3.6 4 7.090 011 6 1.265 009 0.021 OOS .009 11 3 3.6 0.021 005 6 1.265 7.090 011 4 5 1.055 .023 7 2005 12 0.007 0.391 010 -6 .002 S 0.295 026 6.661 0.134 .0115.4 6 7 0.019 027 9 2004 0.046 .011 1.444 S S .027 0.483 10 0.015.011 004 0.028 9 0.008 027 4.6 5 9.259.004 9 0.178.004 3.7 4 6 10.347.00S .004 1.487 00S 10 0.066 5 1.265 020 7 005 0.453 .009 11 0.024 6 0.349 .023 S 0.156 010 .005 12 0.009 7 0.109 .024 9 0.054 6 002 .010 5.5 3.590 S 025 0.034 10 0.018 1.674 .010 003 9 025 4.7 0.010 5 13.382 003 S s 0.553 004 3.5 16.937 005 6 1.752 4 007 9 0.204 004 5 1.519 2017 7 0.525 OOS 004 10 0.077 6 0.412 021 S 0.1SI .009 11 0.025 004 7 0.129 022 9 0.064 2009 12 0.010 004 S 0.041 022 10 0.022 .009 5.6 6 11.519 001 9 0.013 022 4.5 5 21.641 .002 7 19:24 003 3.9 4. 36.859 002 6 2.071 2006 S 0.631 003 5 1.830 015 7 0.607 008 9 9 0.233 004 6 0.485 019 S 0.209 OOS 10 0.0SS 004 7 0.153 020 9 0.074 005 11 0.033 004 3 0.050 020 10 0.026 OOS 12 0.012 004 5 1.830 015 7 0.607.00 9 0.233.004 6 0.485 019 S 0.209 2008 10 0.0SS004 7 0.153 020 9 0.074 .005 11 0.033 004 S 0.050 020 10 0.026 .005 12 0.012 004 9 0.016 020 4.9 5 46.566 001 5.7 6 16.446 001 4.0 5 2.216 2013 6 2.459 .005 7 2.264 2002 6 0.570 2017 7 0.702 2007 8 0.721 003 7 0.180 01S S 0.242 2007 9 0.266 003 S 0.059 LOIS 9 0.087 007 10 0.102 2003 9 0.019 018 10 0.031 007 11 0.03S 003 4.1 5 2.703 011 11 0.011 2007 12 0.014 003 6 0.668 2015 5.0 6 2.938 005 5.5 6 26.373 001 7 0.212 016 7 0.810 2006 7 2.648 002 S 0.070 016 S 0.279 006 S 0.523 003 9 0.023 2017 9 0.101 2007 9 0.303 2003 4.2 5 3.327 009 10 0.036 007 10 0.116 003 6 0.784 013 11 0.013 2007 11 0.044 003 7 0.248 014 5.1 6 3.536 004 12 0.017 003 S 0.083 015 7 0.936 LOOS 5.9 6 56.300 000 9 0.027 015 S co 0.321 006 7 3.113 002 10 0.009 015 9 0.117 .006 S 0.939 002 4.3 5 4.149 008 10 0.042 006 9 0.345 003 6 0.919 012 II 0.015 006 10 0.133 003