The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n = 66, find the probability of a sample mean being less than 19.6 if μ=20 and a = 1.16.

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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st
The population mean and standard deviation are given below. Find the required probability and determine whether the
given sample mean would be considered unusual.
For a sample of n = 66, find the probability of a sample mean being less than 19.6 if μ = 20 and 1.16.
Z
0.0
0.1
0.2
0.3
Standard Normal Table (Page 2)
1.3
1.4
1.5
Click the icon to view page 1 of the standard normal table.
Click the icon to view page 2 of the standard normal table.
For a sample of n = 66, the probability of a sample mean being less than 19.6 if μ = 20 and o=1.16 is.
(Round to four decimal places as needed.)
Arca
0
z
z
.00
.01 .02
.5000 5040 5080
.5398 5438 5478
.5793 5832 5871
7549
7794 .7823
7852
0.8
.8078 8106
8133
0.9
7881 .7910 .7939 7967
8159 8186 8212 8238
8413 8438 8461 8485
8340 .8365
8389
8621
1.0
8554 .8577 8599
1.1
1.2
9115
9236
9265
.9222
9251
9345 9357 .9370 9382
9406 9418 9429
9441
9394
9505
.9515 .9525 .9535
.9545
.03
.04
.05
.06 .07
.08
.09
.5120 5160 5199 5239 5279 .5319 5359
.5517 5557 5596 .5636 5675 5714 .5753
.5910 5948 5987 6026 6064 6103 6141
6179 6217 6255 .6293 6331 6368 6406 6443 6480 6517
0.4 6554 6591 6628 .6664 6700 6736 6772 6808 6844 6879
0.5 6915
6950 6985 7019 .7054 7088 7123
.7157 7190
7224
0.6 .7257 7291 7324
.7357 .7389 .7422 7454 .7486 .7517
0.7 .7580 7611 7642 7673 .7704 7734 7764
.7995 8023
8051
8264 8289 8315
8508 8531
.8643 8665 8686 8708 8729 8749 8770 8790 8810 8830
8849 8869 8888 8907 8925 .8944 8962 8980 8997 .9015
9032 9049 .9066 .9082 9099
.9131 9147 9162 .9177
9192 9207
.9279 .9292 .9306 .9319
9332
1.6 9452 9463 9474 .9484 .9495
1.7 .9554 .9564 9573 .9582 9591 .9599
1.8 9641 9649 .9656 .9664 9671 .9678 9686
1.9 9713 9719 9726 .9732 9738 .9744 .9750
2.0 9772 .9778 9783 9788 9793 .9798 9803
2.1 .9821 9826 .9830 9834 9838 .9842 .9846 .9850 .9854
.9861 .9864 .9868 9871 9875 .9878 .9881 .9884 9887
9893 9896 .9898 .9901 9904 .9906 .9909 9911 .9913
9918 9920 .9922 .9925 9927 .9929 .9931 .9932 9934
.9938 9940 .9941 .9943 9945 .9946 .9948 .9949 .9951
9953 .9955 .9956 .9957 .9959 9960 9961 .9962 .9963
.9965 9966 9967 .9968 .9969 .9970 9971 .9972 .9973
.9974 9975 .9976 9977 .9977 9978 9979 .9979 .9980
.9981 .9982 .9982 9983 .9984
.9984
.9987 .9987 9987 9988 .9988 9989
9990 .9991 .9991 9991 .9992 9992
.9993 .9993 .9994 9994 .9994
.9995 .9995 .9995 9996 9996 .9996
9997 .9997 .9997 .9997 .9997 9997
.00
.02
.03
.04 .05
.9608 .9616 .9625 .9633
.9693 9699
.9756 .9761
9706
.9767
.9808 .9812
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
Z
9985 .9985 .9986
9989 .9989 .9990
9992 .9992 .9993
.9994 .9994 .9995 .9995
.9996 .9996 .9996
.9997 .9997 9997
.06
.08
.01
.07
D
Print
CI
Done
.9817
.9857
.9890
9916
9936
9952
9964
9974
9981
.9986
.9990
.9993
.9995
.9997
.9998
.09
- X
Transcribed Image Text:st The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n = 66, find the probability of a sample mean being less than 19.6 if μ = 20 and 1.16. Z 0.0 0.1 0.2 0.3 Standard Normal Table (Page 2) 1.3 1.4 1.5 Click the icon to view page 1 of the standard normal table. Click the icon to view page 2 of the standard normal table. For a sample of n = 66, the probability of a sample mean being less than 19.6 if μ = 20 and o=1.16 is. (Round to four decimal places as needed.) Arca 0 z z .00 .01 .02 .5000 5040 5080 .5398 5438 5478 .5793 5832 5871 7549 7794 .7823 7852 0.8 .8078 8106 8133 0.9 7881 .7910 .7939 7967 8159 8186 8212 8238 8413 8438 8461 8485 8340 .8365 8389 8621 1.0 8554 .8577 8599 1.1 1.2 9115 9236 9265 .9222 9251 9345 9357 .9370 9382 9406 9418 9429 9441 9394 9505 .9515 .9525 .9535 .9545 .03 .04 .05 .06 .07 .08 .09 .5120 5160 5199 5239 5279 .5319 5359 .5517 5557 5596 .5636 5675 5714 .5753 .5910 5948 5987 6026 6064 6103 6141 6179 6217 6255 .6293 6331 6368 6406 6443 6480 6517 0.4 6554 6591 6628 .6664 6700 6736 6772 6808 6844 6879 0.5 6915 6950 6985 7019 .7054 7088 7123 .7157 7190 7224 0.6 .7257 7291 7324 .7357 .7389 .7422 7454 .7486 .7517 0.7 .7580 7611 7642 7673 .7704 7734 7764 .7995 8023 8051 8264 8289 8315 8508 8531 .8643 8665 8686 8708 8729 8749 8770 8790 8810 8830 8849 8869 8888 8907 8925 .8944 8962 8980 8997 .9015 9032 9049 .9066 .9082 9099 .9131 9147 9162 .9177 9192 9207 .9279 .9292 .9306 .9319 9332 1.6 9452 9463 9474 .9484 .9495 1.7 .9554 .9564 9573 .9582 9591 .9599 1.8 9641 9649 .9656 .9664 9671 .9678 9686 1.9 9713 9719 9726 .9732 9738 .9744 .9750 2.0 9772 .9778 9783 9788 9793 .9798 9803 2.1 .9821 9826 .9830 9834 9838 .9842 .9846 .9850 .9854 .9861 .9864 .9868 9871 9875 .9878 .9881 .9884 9887 9893 9896 .9898 .9901 9904 .9906 .9909 9911 .9913 9918 9920 .9922 .9925 9927 .9929 .9931 .9932 9934 .9938 9940 .9941 .9943 9945 .9946 .9948 .9949 .9951 9953 .9955 .9956 .9957 .9959 9960 9961 .9962 .9963 .9965 9966 9967 .9968 .9969 .9970 9971 .9972 .9973 .9974 9975 .9976 9977 .9977 9978 9979 .9979 .9980 .9981 .9982 .9982 9983 .9984 .9984 .9987 .9987 9987 9988 .9988 9989 9990 .9991 .9991 9991 .9992 9992 .9993 .9993 .9994 9994 .9994 .9995 .9995 .9995 9996 9996 .9996 9997 .9997 .9997 .9997 .9997 9997 .00 .02 .03 .04 .05 .9608 .9616 .9625 .9633 .9693 9699 .9756 .9761 9706 .9767 .9808 .9812 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 Z 9985 .9985 .9986 9989 .9989 .9990 9992 .9992 .9993 .9994 .9994 .9995 .9995 .9996 .9996 .9996 .9997 .9997 9997 .06 .08 .01 .07 D Print CI Done .9817 .9857 .9890 9916 9936 9952 9964 9974 9981 .9986 .9990 .9993 .9995 .9997 .9998 .09 - X
Area
The population mean and standard deviation are given below. Find the required probability and determine whether the
given sample mean would be considered unusual.
For a sample of n = 66, find the probability of a sample mean being less than 19.6 if μ = 20 and 1.16.
z
Click the icon to view page 1 of the standard normal table.
Click the icon to view page 2 of the standard normal table.
Standard Normal Table (Page 1)
For a sample of n = 66, the probability of a sample mean being less than 19.6 if μ = 20 and o=1.16 is
(Round to four decimal places as needed.)
2
D
.09
.08
.07
.02
.01
-3.4
0002
0003
0003
.0003
-3.3 .0003 0004
.0005 0005
0007
0006
0009 .0009
.0078 0080
0102 0104 0107
0129 0132 .0136 0139
.0166 0170 .0174 0179
0212 0217 0222 0228
0281 0287
0268 0274
.06 .05
.04 .03
0003 .0003 0003 0003 0003
0004 .0004 0004 0004 0004
-3.2 .0005 0005 0005 0006 0006 0006 .0006
-3.1 0007 0007 0008 .0008 0008 0008 0009
-3.0 0010 0010 0011 0011 0011 0012 0012 .0013 .0013
-2.9 0014 0014 0015 .0015 0016 0016 0017 .0018 .0018
-2.8 0019 0020 0021 0021 0022 0023 0023 0024 .0025
-2.7 0026 0027 0028 .0029 0030 0031 .0032 0033 .0034
-2.6 0036 0037 0038 0039 0040 0041 .0043 0044 0045
-2.5 0048 0049 0051 .0052 .0054 0055
.0057 .0059
0060
-2.4 .0064 0066 0068
0069
.0071
0073
.0075
-2.3 .0084 0087 0089 .0091 0094 0096 .0099
-2.2 0110 0113 0116
0119 0122 0125
-2.1 0143 0146 0150 0154 .0158 0162
-2.0 0183 0188 0192 0197 0202 0207
-1.9 0233 0239 0244 0250 0256 0262
-1.8 0294 0301 0307 0314 0322 0329
-1.7 .0367 .0375 0384 0392 0401 0409
-1.6 0455 0465 0475 0485 0495 0505
-1.5 0559 0571 0582 0594 0606
-1.4 0681 0694 0708 0721 0735
-1.3 0823 0838 0853 0869 0885
-1.2 0985 1003 .1020 .1038 .1056 .1075 .1093 1112 1131 1151
-1.1 1170 .1190 1210 1230
1251 1271 1292 1314 .1335 .1357
-1.0 .1379 .1401 .1423 1446 .1469 .1492
-0.9 .1611 .1635 .1660 .1685 1711 .1736 .1762
-0.8 .1867 .1894 1922 .1949 .1977 2005 2033
-0.7 2148 2177 2206 .2236 2266 2296 2327
-0.6 2451 2483 2514 .2546 2578 2611 2643
-0.5 2776 2810 2843
2877 2912 2946 2981
-0.4 3121 3156 3192 .3228 3264 3300 3336
-0.3 3483 3520 3557 3594 3632 3669 3707
-0.2 3859 3897 3936 .3974
-0.1 4247 4286 4325 4364
-0.0 4641 4681 4721 4761
z
0427 .0436
0336 0344
0418
.0516
.06.30 0643 .0655
.0351 0359
0446
0548
0526 .0537
.0668
0618
0749
0901
.0764 .0778 0793 0808
0918 0934 .0951 0968
1515 .1539 .1562 1587
.1788 .1814 1841
2061 2090 2119
2358 2389 2420
2676 2709
2743
3015 .3050 3085
3446
3821
4207
4602
5000
3372 .3409
3745 .3783
4013 4052 4090 4129 4168
4404 4443 4483
4801 4840 4880
04 .03
4522 4562
4920 4960
.02 .01
.09
.08
.07
.06
.05
.00
Print
Done
.00
0003
0005
0007
0010
0013
0019
0026
0035
0047
.0062
0082
- X
Transcribed Image Text:Area The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n = 66, find the probability of a sample mean being less than 19.6 if μ = 20 and 1.16. z Click the icon to view page 1 of the standard normal table. Click the icon to view page 2 of the standard normal table. Standard Normal Table (Page 1) For a sample of n = 66, the probability of a sample mean being less than 19.6 if μ = 20 and o=1.16 is (Round to four decimal places as needed.) 2 D .09 .08 .07 .02 .01 -3.4 0002 0003 0003 .0003 -3.3 .0003 0004 .0005 0005 0007 0006 0009 .0009 .0078 0080 0102 0104 0107 0129 0132 .0136 0139 .0166 0170 .0174 0179 0212 0217 0222 0228 0281 0287 0268 0274 .06 .05 .04 .03 0003 .0003 0003 0003 0003 0004 .0004 0004 0004 0004 -3.2 .0005 0005 0005 0006 0006 0006 .0006 -3.1 0007 0007 0008 .0008 0008 0008 0009 -3.0 0010 0010 0011 0011 0011 0012 0012 .0013 .0013 -2.9 0014 0014 0015 .0015 0016 0016 0017 .0018 .0018 -2.8 0019 0020 0021 0021 0022 0023 0023 0024 .0025 -2.7 0026 0027 0028 .0029 0030 0031 .0032 0033 .0034 -2.6 0036 0037 0038 0039 0040 0041 .0043 0044 0045 -2.5 0048 0049 0051 .0052 .0054 0055 .0057 .0059 0060 -2.4 .0064 0066 0068 0069 .0071 0073 .0075 -2.3 .0084 0087 0089 .0091 0094 0096 .0099 -2.2 0110 0113 0116 0119 0122 0125 -2.1 0143 0146 0150 0154 .0158 0162 -2.0 0183 0188 0192 0197 0202 0207 -1.9 0233 0239 0244 0250 0256 0262 -1.8 0294 0301 0307 0314 0322 0329 -1.7 .0367 .0375 0384 0392 0401 0409 -1.6 0455 0465 0475 0485 0495 0505 -1.5 0559 0571 0582 0594 0606 -1.4 0681 0694 0708 0721 0735 -1.3 0823 0838 0853 0869 0885 -1.2 0985 1003 .1020 .1038 .1056 .1075 .1093 1112 1131 1151 -1.1 1170 .1190 1210 1230 1251 1271 1292 1314 .1335 .1357 -1.0 .1379 .1401 .1423 1446 .1469 .1492 -0.9 .1611 .1635 .1660 .1685 1711 .1736 .1762 -0.8 .1867 .1894 1922 .1949 .1977 2005 2033 -0.7 2148 2177 2206 .2236 2266 2296 2327 -0.6 2451 2483 2514 .2546 2578 2611 2643 -0.5 2776 2810 2843 2877 2912 2946 2981 -0.4 3121 3156 3192 .3228 3264 3300 3336 -0.3 3483 3520 3557 3594 3632 3669 3707 -0.2 3859 3897 3936 .3974 -0.1 4247 4286 4325 4364 -0.0 4641 4681 4721 4761 z 0427 .0436 0336 0344 0418 .0516 .06.30 0643 .0655 .0351 0359 0446 0548 0526 .0537 .0668 0618 0749 0901 .0764 .0778 0793 0808 0918 0934 .0951 0968 1515 .1539 .1562 1587 .1788 .1814 1841 2061 2090 2119 2358 2389 2420 2676 2709 2743 3015 .3050 3085 3446 3821 4207 4602 5000 3372 .3409 3745 .3783 4013 4052 4090 4129 4168 4404 4443 4483 4801 4840 4880 04 .03 4522 4562 4920 4960 .02 .01 .09 .08 .07 .06 .05 .00 Print Done .00 0003 0005 0007 0010 0013 0019 0026 0035 0047 .0062 0082 - X
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