At Tires R Us, a retailer of tires, demand for the AAA tire is constant at 100 tires per day with a standard deviation of 10. The cost of placing an order to replenish stock is $50, and the annual cost of holding is $8 per tire. Each tire costs Tires R US $55 and they retail them for $95. Stock is received 5 working days after an order has been placed. No backorders are allowed. Assume 300 working days per year. The company wants to achieve a 90% service level. Entry is area A under the standard normal curve from -o to = (A) 02 .03 .04 .05 06 .OH 09 .5000 5040 -$120 5160 3195 $219 5279 5319 .5359 $517 5557 .3596 .5636 5675 5714 $398 5438 5478 .5832 5871 5910 5948 15987 6026 6103 6141 5793 .6517 6179 6255 6293 6406 6443 6480 .6217 6368 .6554 .6591 6628 6664 6700 6716 6772 6808 6814 .6879 -6915 .6950 .698 .7019 .7054 .7088 .7123 -7157 7190 .7224 .7257 .7291 7324 7357 .7389 .7422 ,7454 .7486 -7517 .7549 76-12 .7673 .7704 7734 .7764 7794 .7823 .7852 .7580 .761 1 .7881 .7967 7995 8023 BOTH .8106 .7910 7939 .8340 8365 .8389 .8159 8186 8212 8238 8264 8289 .8315 .8485 .8503 8531 8554 .8577 8599 8621 3413 .H438 ,8461 -8708 .8770 8790 .8810 .8830 8643 .8729 8849 8907 8925 894 8962 .8980 .8997 .9015 9032 90-19 .9066 -9082 9099 .9115 913 9147 9162 9177 9192 -9207 .9222 9236 9251 9265 9279 9292 9306 9319 .944 9332 9345 .9157 9370 9382 9406 9429 1.3 9495 9515 9525 9535 9545 9452 9474 9484 .9573 .9582 9591 9599 9608 19616 9625 9633 955 9561 9641 .9649 .9656 9664 9671 9678 .9686 9693 9699 9706 1.8 .9719 9738 9744 9750 9756 9761 .9767 9713 .9726 .9732 9772 9778 9783 .9788 9793 9798 9803 9808 9812 .9817 2.0 9857 2.1 9821 .9826 9830 .9834 9838 9842 9846 9850 .9854 .9890 2.2 9861 .9864 .9868 987 9875 .9878 .9384 9887 9913 9916 23 989 .9896 9898 9901 9904 990 9909 991 1 9920 .9922 9925 .9927 .9929 0931 9932 .9934 9936 .9918 .9951 9952 .9938 .9940 9941 .9943 9941 9946 9948 9919 .9953 9955 .9956 .9957 9959 .9960 996 9962 9963 9964 997 9972 9973 9974 2.7 99% 9967 9968 .9969 .9970 2.8 9974 9975 .9976 .9977 .9977 .9978 .997 9979 9980 .9981 .9981 9982 .9982 .9983 .9984 .9984 9985 9985 .9986 .9986 .9987 .9988 9988 .9989 .9989 9989 .9990 9990 3.0 .9987 9990 .9991 .9991 .9991 9992 .9992 9992 999 9993 3. 1 .9994 .9994 .9994 .999-1 .9995 9995 3.2 .9993 .9993 .9994 .9996 9996 .9906 9996 9996 9996 9997 3.3 .9995 9997 9997 9097 .9997 9997 .9997 9998 9097 9997