Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

(A) A worker in the automobile industry works an average of 43.7 hours per week. Assume the distribution is normal with a standard deviation of

image text in transcribed
image text in transcribed
(A) A worker in the automobile industry works an average of 43.7 hours per week. Assume the distribution is normal with a standard deviation of 1.6 hours. (1) What is the probability that a randomly selected automobile worker works less than 40 hours per week? (ii) If 15 automobile workers are randomly selected, what is the probability that the sample mean of working time is more than 45 hours per week? Example: If z=1.96, then PO to 2) = 0.4750. 0.4950 0 1.96 0.09 Z 0.0 0.1 0.2 0.3 0.4 0.00 0.0000 0.0398 0.0793 0.1179 0.1554 0.01 0.0040 0.0438 0.0832 0.1217 0.1591 0.02 0.0080 0.0478 0.0871 0.1255 0.1628 0.03 0.0120 0.0517 0.0910 0.1293 0.1664 0.04 0.0160 0.0557 0.0948 0.1331 0.1700 0.05 0.0199 0.0596 0.0937 0.1368 0.1736 0.06 0.0239 0.0636 0.1026 0.1406 0.1772 0.07 0.0279 0.0675 0.1064 0.1443 0.1808 0.08 0.0319 0.0714 0.1103 0.1480 0.1844 0.0359 0.0753 0.1141 0.1517 0.1079 0.5 0.6 0.7 0.B 0.9 0.1915 0.2257 0.2500 0.2881 0.3159 0.1950 0.2291 0.2611 0.2910 0.3186 0.1985 0.2324 0.2642 0.2939 0.3212 0.2019 0.2357 0.2673 0.2967 0.3238 0.2054 0.2389 0.2704 0.2995 0.3264 02088 0.2422 0.2734 0.3023 0.3289 0.2123 0.2454 0.2784 0.3051 0.3315 0.2157 0.2486 0.2794 0.3078 0.3340 0.2190 0.2517 0.2823 0.3106 0.3365 0.2224 0.2549 0.2852 0.3133 0.3339 1.0 1.1 1.2 1.3 1.4 0.3413 0.3643 0.3849 0.4032 0.4192 0.3438 0.3665 0.3869 0.4049 0.4207 0.3161 0.3686 0.3888 0.4066 0.4222 0.3485 0.3703 0.3907 0.4032 0.4236 0.3508 0.3729 0.3925 0.4099 0.4251 0.3531 0.3749 0.3944 0.4115 0.4265 0.3554 0.3770 0.3982 0.4131 0.4279 0.3577 0.3790 0.3900 0.4147 0.4292 0.3599 0.3810 0.3997 0.4162 0.4306 0.3521 0.3830 0.4015 0.4177 0.4319 1.5 1.6 1.7 1.8 1.9 0.4332 0.4452 0.4554 0.4641 0.4713 0.4345 0.4463 0.4584 0.4649 0.4719 0.4357 0.4474 0.4573 0.4656 0.4726 0.4370 0.4484 0.4582 0.4664 0,4732 0.4332 0.4495 0.4591 0.4671 0.4738 0.4394 0.4505 0.4599 0.4678 0.4744 0.4406 0.4515 0.4508 0.4686 0.4750 0.4418 0.4525 0.4616 0.4093 0.4756 0.4429 0.4535 0.4625 0.4699 0.4761 0.4441 0.4545 0.4633 0.4706 0.4767 2.0 2.1 22 23 24 0.4772 0.4821 0.4861 0.4893 0.4918 0.4778 0.4826 0.4864 0.4896 0.4920 0.4783 0.4830 0.4868 0.4898 0.4922 0.4785 0.4834 0.4871 0.4901 0.4925 0.4793 0.4338 0.4375 0.4904 0.4927 0.4798 0.4042 0.4676 0.4906 0.4929 0.4803 0.4346 0.4881 0.4909 0.4931 0.4808 0.4850 0.4884 0.4911 0.4932 0.4812 0.4854 0.4887 0.4913 0.4934 04817 0.4857 0.4890 0.4916 0.4936 2.5 2.6 2.7 2.8 2.9 0.4938 04953 0.4965 0.4974 0.4981 0.4940 0.4955 0.4906 0.4975 0.4982 0.4941 0.4956 0.4967 0.4975 0.4982 0.4943 0.4957 0.4903 0.4977 0.4983 0.4945 0.4959 0.4969 0.4977 0.4984 0.4946 0.4960 0.4970 0.4978 0.4934 0.4948 0.4961 0.4971 0.4979 0.4905 0.4949 0.4962 0.4972 0.4979 0.4905 0.4951 0.4983 0.4973 0.4980 0.4936 0.4952 0.4984 0.4974 0.4981 0.4986 3.0 0.4907 0.4987 0.4987 0.4989 0.4988 0.4989 0.4989 0.4989 0.4990 0.4990

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Students also viewed these Finance questions