JUST NEED LETTER C ANSWERED. THANK YOU!!!!

Demand for walnut fudge ice cream at the Sweet Cream Dairy can be approximated by a normal distribution with a mean of 18 gallons per week and a standard deviation of 6.7 gallons per week. The new manager desires a service level of 90 percent. Lead time is two days, and the dairy is open seven days a week. (Hint Work in terms of weeks.) Use Table B and Table B1. a-1. If an ROP model is used, what ROP would be consistent with the desired service level? (Do not round intermediate calculations. Round your final answer to 2 decimal places.) Answer is complete and correct. ROP 9.73 gallons a-2. How many days of supply are on hand at the ROP, assuming average demand? (Do not round intermediate calculations. Round your final answer to 2 decimal places.) Answer is complete and correct. Days 3.78 b-1. If a fixed-interval model is used instead of an ROP model, what order size would be needed for the 90 percent service level, with an order interval of 7 days and a supply of 8 gallons on hand at the order time? (Do not round intermediate calculations. Round your final answer to the nearest whole number.) Answer is complete and correct. Order size 25 gallons b-2. What is the probability of experiencing a stockout before this order arrives? (Do not round intermediate calculations. Round your final answer to the nearest whole percent.) Answer is complete and correct. Probability 22 % c. Suppose the manager is using the ROP model described in part a. One day after placing an order with the supplier, the manager receives a call from the supplier that the order will be delayed because of problems at the supplier's plant. The supplier promises to have the order there in two days. After hanging up, the manager checks the supply of walnut fudge ice cream and finds that 2 gallons have been sold since the order was placed. Assuming the supplier's promise is valid, what is the probability that the dairy will run out of this flavor before the shipment arrives? (Do not round intermediate calculations. Round your final answer to the nearest whole percent.) Answer is complete but not entirely correct. Risk probability 89 x 1% Table B 1. Areas under the standardized normal curve, from 0 to Z .09 .08 .07 .06 .05 .04 .03.02 .01.00 Z ,0003 .0004 .0002 .0003 .0005 .0007 .0010 .0003 .0004 .0005 .0007 .0010 .0003 .0004 .0005 .0008 .0011 .0003 .0004 .0006 .0008 .0011 .0003 .0004 .0006 .0008 .0011 .0003 .0004 .0006 .0009 .0012 .0006 .0003 .0005 .0006 .0009 .0013 .0003 .0005 .0007 .0009 .0013 .0003 .0005 .0007 .0010 .0013 -3.4 -3.3 -3.2 -3.1 .0008 .0012 -3.0 .0014 .0014 0015 .0017 .0019 .0026 .0023 .0019 0026 .0036 .0048 .0020 .0027 .0037 .0049 .0015 .0021 .0029 .0039 .0052 .0032 .0016 .0022 .0030 .0040 .0054 .0021 ,0028 .0038 .0051 .0016 .0023 .0031 .0041 .0055 .0018 .0024 .0033 .0044 .0059 .0018 .0025 .0034 .0045 .0060 .0035 -2.9 -2.8 -2.7 -2.6 -2.5 .0043 .0057 .0047 .0062 .0073 .0096 .0078 .0102 .0080 .0104 -2.4 -2.3 .0064 .0084 .0110 .0143 .0183 .0066 .0087 .0113 .0146 .0188 .0068 .0089 .0116 .0150 ,0192 .0069 .0091 .0119 .0154 .0197 .0071 .0094 .0122 .0158 .0202 ,0125 .0075 .0099 .0129 .0166 ,0212 .0132 .0136 .0082 .0107 .0139 .0179 .0228 -2.2 20170 -2.1 .0162 .0207 .0174 .0222 .0217 -2.0 .0233 .0294 .0367 .0455 .0559 .0239 .0301 .0375 .0465 .0571 .0244 .0307 .0384 0475 .0582 .0250 .0314 .0392 .0485 .0594 .0256 .0322 .0401 .0495 .0606 .0262 ,0329 .0409 .0505 .0618 .0268 .0336 .0418 0516 .0630 .0274 .0344 ,0427 .0526 .0643 .0281 .0351 .0436 .0537 .0655 .0287 .0359 .0446 .0548 .0668 -1.9 -1.8 -1.7 -1.6 -1.5 -1.4 .0681 .0823 .0985 . 1170 .1379 .0694 .0838 .1003 .1190 .1401 -1.3 .0708 .0853 .1020 .1210 .1423 .0721 .0869 .1038 .1230 .1446 .0735 .0885 .1056 .1251 .1469 .0749 ,0901 .1075 .1271 .1492 .0764 .0918 .1093 .0778 .0934 .1112 .0793 .0951 .1131 .1335 .1562 .0808 .0968 .1151 .1357 .1587 1292 .1314 -1.2 -1.1 - 1.0 .1515 .1539 -0.9 -0.8 .1611 .1867 2148 .2451 2776 .1635 .1894 2177 2483 .2810 .1660 .1922 .2206 .2514 .2843 .1685 .1949 .2236 .2546 .2877 .1711 .1977 .2266 2578 2912 .1736 .2005 2296 .2611 2946 .1762 .2033 .2327 .2643 .2981 .1788 .2061 2358 .2676 3015 .1814 .2090 .2389 2709 .3050 .1841 .2119 .2420 2743 .3085 -0.7 -0.6 -0.5 .3121 .3483 .3859 4247 .4641 3156 .3520 .3897 .4286 .4681 3192 3557 3936 .4325 .4721 3228 3594 3974 .4364 .4761 .3264 .3632 4013 .4404 .4801 3300 3669 4052 .4443 4840 3336 3707 4090 4483 4880 3372 3745 .4129 .4522 .4920 .3409 .3783 4168 .4562 4960 .3446 .3821 .4207 .4602 .5000 -0.4 -0.3 -0.2 -0.1 -0.0 Z 19989 3.0 31 32 3.3 3.4 19987 9990 19999 19995 19997 19989 9992 9994 19996 19990 19993 19995 19996 19997 19997