Question: Help with this Question! 55 units is not the answer and i cant figure out why its wrong or what the right answer is? Will

Help with this Question!
55 units is not the answer and i cant figure out why its wrong or what the right answer is?
Will thumbs up!
Help with this Question! 55 units is not the answer and i
cant figure out why its wrong or what the right answer is?

One item a computer store sells is supplled by a vendor who handles only that item. Demand for that item recently changed, and the store manager must determine when to replenish it. The manager wants a probability of at least 96 percent of not having a stockout during lead time. The manager expects demand to average a dozen units a day and have a standard deviation of two units a day. Lead time is varlable, averaging four days with a standard deviation of one day. Assume normality and that seasonality is not a factor. Use Table. o. When should the manager reorder to achieve the desired probability? (Round your intermediate calculations and final answer to 2 decimal places.) b. Which of the following assumptions would be violated if seasonality were present? Demand and lead time independence Constant demand Constant lead time \begin{tabular}{|c|c|c|c|c|c|c|c|c|c|c|} \hlinez & .00 & .01 & .02 & .03 & .04 & .05 & .06 & .07 & .08 & .09 \\ \hline 0 & 5000 & .5040 & .5080 & .5120 & .5160 & .5199 & .5239 & 5279 & .5319 & .5359 \\ \hline .1 & .5398 & .5438 & .5478 & .5517 & .5557 & .5596 & .5636 & 5675 & .5714 & .5753 \\ \hline .2 & .5793 & .5832 & .5871 & .5910 & .5948 & .5987 & .6026 & .6064 & .6103 & .6141 \\ \hline 3 & .6179 & .6217 & .6255 & .6293 & .6331 & .6368 & .6406 & .6443 & 6480 & .6517 \\ \hline .4 & .6554 & .6591 & .6628 & .6664 & .6700 & .6736 & .6772 & .6808 & 6844 & .6879 \\ \hline .5 & .6915 & .6950 & .6985 & 7019 & .7054 & .7088 & .7123 & 7157 & .7190 & .7224 \\ \hline 6 & .7257 & .7291 & .7324 & .7357 & .7389 & .7422 & .7454 & 7486 & .7517 & .7549 \\ \hline .7 & .7580 & .7611 & .7642 & .7673 & .7703 & .7734 & .7764 & 7794 & .7823 & .7852 \\ \hline 8 & 7881 & .7910 & .7939 & .7967 & .7995 & 8023 & 8051 & 8078 & 8106 & 8133 \\ \hline .9 & 8159 & .8186 & .8212 & 8238 & .8264 & 8289 & .8315 & 8340 & 8365 & .8389 \\ \hline 1.0 & 8413 & .8438 & .8461 & 8485 & .8508 & .8531 & .8554 & 8577 & 8599 & .8621 \\ \hline 1.1 & 8643 & .8665 & .8686 & 8708 & .8729 & 8749 & 8770 & 8790 & 8810 & .8830 \\ \hline 1.2 & 8849 & .8869 & .8888 & 8907 & 8925 & 8944 & 8962 & 8980 & 8997 & .9015 \\ \hline 1.3 & .9032 & .9049 & .9066 & .9082 & .9099 & .9115 & .9131 & 9147 & 9162 & .917 \\ \hline 1.4 & 9192 & .9207 & .9222 & .9236 & .9251 & .9265 & .9279 & 9292 & 9006 & .9319 \\ \hline 1.5 & .9332 & .9345 & .9357 & .9370 & .9382 & .9394 & .9406 & 9418 & 9429 & .9441 \\ \hline 1.6 & .9452 & .9463 & .9474 & .9484 & .9495 & .9505 & .9515 & 9525 & .9535 & .9545 \\ \hline 1.7 & .9554 & .9564 & .9573 & .9582 & .9591 & .9599 & .9608 & 9616 & .9625 & .9633 \\ \hline 1.8 & .9641 & .9649 & .9656 & .9664 & .9671 & .9678 & .9686 & 9693 & 9699 & .9706 \\ \hline 1.9 & .9713 & .9719 & .9726 & .9732 & .9738 & .9744 & .9750 & 9756 & 9761 & 9767 \\ \hline 20 & .9772 & .9778 & .9783 & .9788 & .9793 & .9798 & .9803 & 9808 & .9812 & .9817 \\ \hline 21 & $821 & .9826 & .9830 & .9834 & .9838 & .9842 & .9846 & 9850 & 9854 & .9857 \\ \hline 2.2 & 9861 & .9864 & .9868 & .9871 & .9875 & .9878 & .9881 & 9884 & .9887 & .9890 \\ \hline 23 & .9893 & .9896 & .9898 & .9901 & .9904 & .9906 & .9909 & 9911 & 9913 & .9916 \\ \hline 24 & .9918 & .9920 & .9922 & 9925 & .9927 & .9929 & .9931 & 9932 & .9934 & .9936 \\ \hline 2.5 & 9938 & .9940 & .9941 & .9943 & 9945 & .9946 & .9948 & 9949 & 9951 & .9952 \\ \hline 2.6 & .9953 & .9955 & .9956 & .9957 & .9959 & .9960 & .9961 & 9962 & .9963 & .9964 \\ \hline 27 & .9965 & .9966 & .9967 & .9968 & .9969 & .9970 & .9971 & 9972 & .9973 & .9974 \\ \hline 28 & .9974 & .9975 & .9976 & .9977 & .9977 & .9978 & .9979 & 9979 & .9980 & .9981 \\ \hline 29 & .9981 & .9982 & .9982 & .9983 & 9984 & .9984 & .9985 & 9985 & .9986 & .9986 \\ \hline 3.0 & .9987 & .9987 & .9987 & .9988 & .9988 & .9989 & .9989 & 9989 & .9990 & .9990 \\ \hline 3.1 & .9990 & .9991 & .9991 & 9991 & .9992 & .9992 & .9992 & 9992 & 9993 & .9993 \\ \hline 3.2 & .9993 & .9993 & .9994 & .9994 & .9994 & .9994 & .9994 & 9995 & .9995 & .9995 \\ \hline 3.3 & .9995 & .9995 & .9995 & .9996 & .9996 & .9996 & .9996 & 9996 & .9996 & .9997 \\ \hline 3.4 & .9997 & .9997 & .9997 & .9997 & .9997 & .9997 & 9997 & 9997 & 9997 & .9998 \\ \hline \end{tabular}

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