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Specifications for a part for a 3-D printer state that the part should weigh between 24.4 and 25.4 ounces. The process that produces the
Specifications for a part for a 3-D printer state that the part should weigh between 24.4 and 25.4 ounces. The process that produces the parts has a mean of 24.9 ounces and a standard deviation of .24 ounce. The distribution of output is normal. Use Table-A. a.What percentage of parts will not meet the weight specs? (Round your "z" value and final answer to 2 decimal places.) Table A Areas under the normal curve, 0 to z .00 .01 .02 .03 .04 .05 90 .06 .07 10 .08 80 .09 60 0.0 .0000 .0040 .0080 0120 .0160 .0199 .0239 .0279 .0319 .0359 0.1 .0398 .0438 .0478 .0517 .0557 .0596 .0636 .0675 .0714 .0753 0.2 .0793 .0832 .0871 .0910 .0948 .0987 .1026 .1064 .1103 .1141 0.3 .1179 .1217 .1255 .1293 .1331 .1368 .1406 .1443 .1480 .1517 0.4 .1554 .1591 .1628 .1664 .1700 .1736 .1772 .1808 .1844 .1879 0.5 .1915 .1950 .1985 .2019 2054 .2088 2123 .2157 .2190 2224 0.6 .2257 2291 .2324 .2357 2389 2422 2454 .2486 .2517 2549 0.7 .2580 2611 .2642 .2673 2703 .2734 2764 .2794 .2823 2852 0.8 .2881 2910 2939 2967 2995 .3023 .3051 .3078 .3106 .3133 0.9 .3159 3186 .3212 .3238 .3264 3289 .3315 .3340 .3365 .3389 1.0 3413 3438 .3461 .3485 3508 .3531 3554 .3577 3599 .3621 1.1 .3643 3665 3686 .3708 .3729 .3749 .3770 .3790 .3810 .3830 1.2 3849 .3869 3888 3907 3925 .3944 3962 .3980 .3997 4015 1.3 .4032 4049 .4066 4082 4099 .4115 4131 .4147 4162 4177 1.4 .4192 4207 .4222 4236 4251 4265 4279 .4292 .4306 4319 1.5 .4332 4345 .4357 .4370 4382 .4394 4406 .4418 .4429 4441 1.6 .4452 4463 4474 .4484 4495 .4505 4515 4525 4535 4545 1.7 .4554 4564 .4573 .4582 .4591 .4599 .4608 .4616 4625 .4633 1.8 .4641 4649 4656 4664 4671 .4678 4686 4693 .4699 4706 1.9 .4713 4719 .4726 .4732 4738 .4744 .4750 .4756 .4761 4767 22222 .4772 4778 .4783 4788 4793 .4798 4803 .4808 4812 4817 .4821 .4826 4830 .4834 4838 .4842 .4846 .4850 .4854 .4857 .4861 4864 4868 4871 4875 .4878 4881 4884 4887 4890 2.3 .4893 .4896 .4898 4901 4904 .4906 .4909 .4911 .4913 4916 .4918 4920 4922 4925 4927 .4929 4931 .4932 4934 4936 2.5 2.6 2.7 567 .4938 4940 .4941 .4943 4945 .4946 4948 .4949 .4951 .4952 .4953 4955 4956 4957 4959 4960 4961 .4962 4963 4964 .4965 .4966 .4967 4968 4969 .4970 .4971 4972 .4973 4974 2.8 .4974 .4975 4976 .4977 4977 .4978 .4979 .4979 4980 4981 2.9 .4981 4982 .4982 .4983 .4984 .4984 4985 .4985 4986 4986 3.0 .4987 .4987 .4987 4988 4988 .4989 .4989 .4989 4990 4990 Percentage of parts % b.Within what values will 95.44 percent of the sample means of this process fall if samples of n = 7 are taken and the process is in control (random)? (Round your answers to 2 decimal places.) Lower value Upper value c. Using the control limits from part b, would the following sample means be in control? 24.52, 24.53, 24.44, 24.51, 24.41, 24.39 O This process is in control. O This process is not in control.
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