TABLE 1 CUMULATIVE PROBABILITIES FOR THE STANDARD NORMAL DISTRIBUTION (Continued) Cumulative Entries in the table give the area under the curve to the left of the z value. For example, for z= 1.25, the cumulative probability is .8944. probability .00 .01 .02 .03 .04 .05 .06 .07 .08 .09 5080 5120 5517 .0 5000 .5040 .5160 .5199 .5239 .5279 .5319 .5359 5714 .6103 .1 .5398 .5438 .5478 .5557 .5596 .5636 .5675 .5753 .2 5793 .5832 .5871 .5910 .5948 .5987 .6026 .6064 .6141 .3 .6179 .6217 .6255 .6293 .6331 .6368 .6406 .6443 .6480 .6517 .4 .6554 .6591 .6628 .6664 .6700 .6736 .6772 .6808 .6844 .6879 .5 .6915 .6950 .6985 .7019 .7054 .7088 7123 .7157 .7190 .7224 .6 .7257 .7291 .7324 .7357 .7389 .7422 .7454 .7486 .7517 .7549 .7611 .7910 .7 .7580 .7642 .7673 .7704 .7734 .7764 .7794 .7823 .7852 .8 .7881 .7939 .7967 .7995 .8023 .8051 .8078 8106 .8133 .9 .8159 .8186 .8212 .8238 .8264 .8289 .8315 .8340 .8365 .8389 .8413 .8643 1.0 .8438 .8461 .8485 .8508 .8531 .8554 .8577 .8599 .8621 1.1 .8665 .8686 .8708 .8729 .8749 .8770 .8790 .8810 .8830 1.2 .8849 .8869 .8888 .8907 .8925 .8944 .8962 .8980 .8997 .9015 1.3 .9032 .9049 .9066 .9082 .9099 .9115 .9131 .9147 .9162 .9177 1.4 .9192 9207 .9222 .9236 .9251 .9265 .9279 .9292 .9306 .9319 1.5 .9332 .9345 .9357 .9370 .9382 .9394 .9406 .9418 .9429 .9441 1.6 .9452 .9463 .9474 .9484 .9495 .9505 .9515 .9525 .9535 .9545 .9582 .9664 .9633 .9706 1.7 .9554 .9564 .9573 .9591 .9599 .9608 .9616 .9625 1.8 .9641 .9649 .9656 .9671 .9678 .9686 .9693 .9699 1.9 .9713 .9719 .9726 .9732 .9738 .9744 .9750 .9756 .9761 .9767 2.0 .9772 .9778 .9783 .9788 .9793 .9798 .9803 .9808 .9812 .9817 2.1 .9821 .9826 .9830 .9834 .9838 .9842 .9846 .9850 .9854 .9857 .9884 .9911 .9890 .9916 2.2 .9861 .9864 .9868 .9871 .9875 .9878 .9881 .9887 2.3 .9893 .9896 .9898 .9901 .9904 .9906 .9909 .9913 2.4 .9918 .9920 .9922 .9925 .9927 .9929 .9931 .9932 .9934 .9936 2.5 .9938 .9940 .9941 .9943 .9945 .9946 .9948 .9949 .9951 .9952 .9961 .9971 2.6 .9953 .9965 .9955 .9956 .9967 .9957 .9959 .9960 .9962 .9963 .9964 .9972 .9979 2.7 .9966 .9968 .9969 .9970 .9973 .9974 .9977 .9983 2.8 .9974 .9975 .9976 .9977 .9978 .9979 .9980 .9981 2.9 .9981 .9982 .9982 .9984 .9984 .9985 .9985 .9986 .9986 3.0 .9987 .9987 .9987 .9988 .9988 .9989 .9989 .9989 .9990 .9990

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question

A population has a mean of 300 and a standard deviation of 60. Suppose a sample of size 100 is selected x bar and mean is used to estimate . Use z-table.

 

  1. What is the probability that the sample mean will be within +/- 5 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.)
     

  2. What is the probability that the sample mean will be within +/- 17 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.)
     
TABLE 1 CUMULATIVE PROBABILITIES FOR THE STANDARD NORMAL
DISTRIBUTION (Continued)
Cumulative
Entries in the table
give the area under the
curve to the left of the
z value. For example, for
z= 1.25, the cumulative
probability is .8944.
probability
.00
.01
.02
.03
.04
.05
.06
.07
.08
.09
5080
5120
5517
.0
5000
.5040
.5160
.5199
.5239
.5279
.5319
.5359
5714
.6103
.1
.5398
.5438
.5478
.5557
.5596
.5636
.5675
.5753
.2
5793
.5832
.5871
.5910
.5948
.5987
.6026
.6064
.6141
.3
.6179
.6217
.6255
.6293
.6331
.6368
.6406
.6443
.6480
.6517
.4
.6554
.6591
.6628
.6664
.6700
.6736
.6772
.6808
.6844
.6879
.5
.6915
.6950
.6985
.7019
.7054
.7088
7123
.7157
.7190
.7224
.6
.7257
.7291
.7324
.7357
.7389
.7422
.7454
.7486
.7517
.7549
.7611
.7910
.7
.7580
.7642
.7673
.7704
.7734
.7764
.7794
.7823
.7852
.8
.7881
.7939
.7967
.7995
.8023
.8051
.8078
8106
.8133
.9
.8159
.8186
.8212
.8238
.8264
.8289
.8315
.8340
.8365
.8389
.8413
.8643
1.0
.8438
.8461
.8485
.8508
.8531
.8554
.8577
.8599
.8621
1.1
.8665
.8686
.8708
.8729
.8749
.8770
.8790
.8810
.8830
1.2
.8849
.8869
.8888
.8907
.8925
.8944
.8962
.8980
.8997
.9015
1.3
.9032
.9049
.9066
.9082
.9099
.9115
.9131
.9147
.9162
.9177
1.4
.9192
9207
.9222
.9236
.9251
.9265
.9279
.9292
.9306
.9319
1.5
.9332
.9345
.9357
.9370
.9382
.9394
.9406
.9418
.9429
.9441
1.6
.9452
.9463
.9474
.9484
.9495
.9505
.9515
.9525
.9535
.9545
.9582
.9664
.9633
.9706
1.7
.9554
.9564
.9573
.9591
.9599
.9608
.9616
.9625
1.8
.9641
.9649
.9656
.9671
.9678
.9686
.9693
.9699
1.9
.9713
.9719
.9726
.9732
.9738
.9744
.9750
.9756
.9761
.9767
2.0
.9772
.9778
.9783
.9788
.9793
.9798
.9803
.9808
.9812
.9817
2.1
.9821
.9826
.9830
.9834
.9838
.9842
.9846
.9850
.9854
.9857
.9884
.9911
.9890
.9916
2.2
.9861
.9864
.9868
.9871
.9875
.9878
.9881
.9887
2.3
.9893
.9896
.9898
.9901
.9904
.9906
.9909
.9913
2.4
.9918
.9920
.9922
.9925
.9927
.9929
.9931
.9932
.9934
.9936
2.5
.9938
.9940
.9941
.9943
.9945
.9946
.9948
.9949
.9951
.9952
.9961
.9971
2.6
.9953
.9965
.9955
.9956
.9967
.9957
.9959
.9960
.9962
.9963
.9964
.9972
.9979
2.7
.9966
.9968
.9969
.9970
.9973
.9974
.9977
.9983
2.8
.9974
.9975
.9976
.9977
.9978
.9979
.9980
.9981
2.9
.9981
.9982
.9982
.9984
.9984
.9985
.9985
.9986
.9986
3.0
.9987
.9987
.9987
.9988
.9988
.9989
.9989
.9989
.9990
.9990
Transcribed Image Text:TABLE 1 CUMULATIVE PROBABILITIES FOR THE STANDARD NORMAL DISTRIBUTION (Continued) Cumulative Entries in the table give the area under the curve to the left of the z value. For example, for z= 1.25, the cumulative probability is .8944. probability .00 .01 .02 .03 .04 .05 .06 .07 .08 .09 5080 5120 5517 .0 5000 .5040 .5160 .5199 .5239 .5279 .5319 .5359 5714 .6103 .1 .5398 .5438 .5478 .5557 .5596 .5636 .5675 .5753 .2 5793 .5832 .5871 .5910 .5948 .5987 .6026 .6064 .6141 .3 .6179 .6217 .6255 .6293 .6331 .6368 .6406 .6443 .6480 .6517 .4 .6554 .6591 .6628 .6664 .6700 .6736 .6772 .6808 .6844 .6879 .5 .6915 .6950 .6985 .7019 .7054 .7088 7123 .7157 .7190 .7224 .6 .7257 .7291 .7324 .7357 .7389 .7422 .7454 .7486 .7517 .7549 .7611 .7910 .7 .7580 .7642 .7673 .7704 .7734 .7764 .7794 .7823 .7852 .8 .7881 .7939 .7967 .7995 .8023 .8051 .8078 8106 .8133 .9 .8159 .8186 .8212 .8238 .8264 .8289 .8315 .8340 .8365 .8389 .8413 .8643 1.0 .8438 .8461 .8485 .8508 .8531 .8554 .8577 .8599 .8621 1.1 .8665 .8686 .8708 .8729 .8749 .8770 .8790 .8810 .8830 1.2 .8849 .8869 .8888 .8907 .8925 .8944 .8962 .8980 .8997 .9015 1.3 .9032 .9049 .9066 .9082 .9099 .9115 .9131 .9147 .9162 .9177 1.4 .9192 9207 .9222 .9236 .9251 .9265 .9279 .9292 .9306 .9319 1.5 .9332 .9345 .9357 .9370 .9382 .9394 .9406 .9418 .9429 .9441 1.6 .9452 .9463 .9474 .9484 .9495 .9505 .9515 .9525 .9535 .9545 .9582 .9664 .9633 .9706 1.7 .9554 .9564 .9573 .9591 .9599 .9608 .9616 .9625 1.8 .9641 .9649 .9656 .9671 .9678 .9686 .9693 .9699 1.9 .9713 .9719 .9726 .9732 .9738 .9744 .9750 .9756 .9761 .9767 2.0 .9772 .9778 .9783 .9788 .9793 .9798 .9803 .9808 .9812 .9817 2.1 .9821 .9826 .9830 .9834 .9838 .9842 .9846 .9850 .9854 .9857 .9884 .9911 .9890 .9916 2.2 .9861 .9864 .9868 .9871 .9875 .9878 .9881 .9887 2.3 .9893 .9896 .9898 .9901 .9904 .9906 .9909 .9913 2.4 .9918 .9920 .9922 .9925 .9927 .9929 .9931 .9932 .9934 .9936 2.5 .9938 .9940 .9941 .9943 .9945 .9946 .9948 .9949 .9951 .9952 .9961 .9971 2.6 .9953 .9965 .9955 .9956 .9967 .9957 .9959 .9960 .9962 .9963 .9964 .9972 .9979 2.7 .9966 .9968 .9969 .9970 .9973 .9974 .9977 .9983 2.8 .9974 .9975 .9976 .9977 .9978 .9979 .9980 .9981 2.9 .9981 .9982 .9982 .9984 .9984 .9985 .9985 .9986 .9986 3.0 .9987 .9987 .9987 .9988 .9988 .9989 .9989 .9989 .9990 .9990
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