1) The red blood cell count for a population of adult males can be approximated by a normal distribution, with a mean of 5.4 million cells per microliter and a standard deviation of 0.4 million cells per microliter. What is the minimum red blood cell count that can be in the top 25% of counts? What is the maximum red blood cell count that can be in the bottom 15% of counts?
1) The red blood cell count for a population of adult males can be approximated by a normal distribution, with a mean of 5.4 million cells per microliter and a standard deviation of 0.4 million cells per microliter. What is the minimum red blood cell count that can be in the top 25% of counts? What is the maximum red blood cell count that can be in the bottom 15% of counts?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
1) The red blood cell count for a population of adult males can be approximated by a normal
distribution, with amean of 5.4 million cells per microliter and a standard deviation of 0.4 million
cells per microliter. What is the minimum red blood cell count that can be in the top 25% of
counts? What is the maximum red blood cell count that can be in the bottom 15% of counts?
distribution, with a
cells per microliter. What is the minimum red blood cell count that can be in the top 25% of
counts? What is the maximum red blood cell count that can be in the bottom 15% of counts?
2) A vending machine dispenses coffee into an 8-ounce cup. The amounts of coffee dispensed into
the cup arenormally distributed , with a standard deviation of 0.03 ounces. You can allow the cup
to overflow 1% of the time. What amount should you set as the mean amount of coffee to be
dispensed?
the cup are
to overflow 1% of the time. What amount should you set as the mean amount of coffee to be
dispensed?
3) A large population has a mean of 310 and a standard deviation of 37. Draw out a normal curve
and label the values at 1, 2, and 3 standard deviations away from the mean. Then, using the
empirical rule, find what percentage of the observations fall in the intervals μ ± 1ơ, μ ± 2ơ, and
μ ± 3ơ.
and label the values at 1, 2, and 3 standard deviations away from the mean. Then, using the
empirical rule, find what percentage of the observations fall in the intervals μ ± 1ơ, μ ± 2ơ, and
μ ± 3ơ.

Transcribed Image Text:Table A (Continued)
2.3
2.4
2.5
2.6
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.7
2.8
2.9
3.0
3.1
3.2
Table entry for z is the
probability lying below z.
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
3.3
3.4
Z
0.0
0.1
0.2
0.3
0.4
.00
.5000
5398
.5793
.6179
.6554
.6915
.7257
.7580
.7881
.8159
.8413
.8643
.8849
.9032
.9192
.9332
.9452
.9554
9641
.9713
.9772
.9821
.9861
.9893
.9918
.9938
.9953
.9965
.9974
.9981
.9987
.9990
.9993
.9995
.9997
.01
.5040
.5438
.5832
.6217
.6591
.6950
.7291
.7611
.7910
.8186
.8438
.8665
.8869
.9049
.9207
.9345
.9463
.9564
.9649
9719
.9778
.9826
.9864
.9896
.9920
.9940
.9955
.9966
.9975
.9982
.9987
.9991
.9993
.9995
.9997
.02
.5080
.5478
.5871
.6255
.6628
.6985
.7324
.7642
.7939
.8212
.8461
.8686
.8888
.9066
.9222
.9357
.9474
.9573
.9656
.9726
.9783
.9830
.9868
.9898
.9922
.9941.
.9956
.9967
.9976
.9982
.9987
.9991
.9994
.9995
.9997
.03
.5120
.5517
.5910
.6293
.6664
.7019
.7357
.7673
.7967
.8238
.8485
.8708
.8907
.9082
.9236
.9370
.9484
.9582
.9664
.9732
.9788
.9834
.9871
.9901
.9925
.9943
.9957
.9968
.9977
.9983
.9988
.9991
.9994
.9996
.9997
Probability
.04
.5160
.5557
.5948
.6331
.6700
.7054
.7389
.7704
7995
.8264
.8508
.8729
.8925
.9099
.9251
.9382
.9495
.9591
.9671
.9738
.9793
.9838
.9875
.9904
9927
.9945
.9959
.9969
.9977
.9984
.9988
.9992
.9994
.9996
.9997
.05
.5199
.5596
.5987
.6368
.6736
.7088
.7422
.7734
.8023
.8289
.8531
.8749
.8944
.9115
.9265
.9394
.9505
.9599
.9678
.9744
.9798
.9842
.9878
.9906
.9929
.9946
9960
.9970
.9978
.9984
.9989
.9992
.9994
9996
.9997
.06
.5239
.5636
.6026
.6406
.6772
.7123
.7454
.7764
.8051
.8315
.8554
.8770
.8962
.9131
.9279
.9406
.9515
.9608
.9686
.9750
.9803
.9846
.9881
9909
.9931
9948
.9961
.9971
.9979
.9985
9989
.9992
9994
.9996
.9997
2
.07
.5279
.5675
.6064
.6443
.6808
.7157
.7486
.7794
.8078
.8340
.8577
.8790
.8980
.9147
.9292
.9418
.9525
.9616
.9693
.9756
9808
.9850
.9884
.9911
.9932
9949
.9962
9972
.08
.5319
.5714
.6103
.6480
.6844
.7190
.7517
.7823
.8106
.8365
.8599
.8810
.8997
.9162
.9306
.9429
.9535
.9625
.9699
.9761
9812
.9854
9887
9913
9916
9934 ..9936
.9951
.9952
.9963
.9964
.9973
.9974
.9980
.9981
.9986
9986
.9990
.9990
.9993
.9993
.9995
.9995
.9996
.9997
.9997
9998
.09
.5359
.5753
.6141
.9979
.9985
.9989
.9992
.9995
.9996
.9997
.6517
.6879
.7224
.7549
.7852
.8133
.8389
.8621
.8830
.9015
9177
.9319
9441
9545
.9633
.9706
.9767
9817
.9857
.9890

Transcribed Image Text:Table A Standard normal probabilities
Z
-3.4
-3.3
-3.2
-3.1
-3.0
-2.9
-2.8
-2.7
-2.6
-2.5
-2.4
-2.3
-2.2
-2.1
-2.0
-1.9
- 1.8
-1.7
-1.6
-1.5
-1.4
-1.3
- 1.2
- 1.1
-1.0
-0.9
-0.8
-0.7
-0.6
-0.5
Table entry for z is the
probability lying below z.
-0.4
-0.3
-0.2
-0.1
-0.0
.00
.0003
.0005
,0007
.0010
.0013
.0019
.0026
.0035
.0047
.0062
.0082
.0107
.0139
.0179
.0228
.0287
.0359
.0446
.0548
.0668
.0808
.0968
.1151
.1357
.1587
.1841
.2119
.2420
.2743
.3085
.3446
.3821
.4207
.4602
.5000
.01
.0003
.0005
.0007
.0009
.0013
.0018
.0025
.0034
.0045
.0060
.0080
.0104
.0136
.0174
.0222
,0281
.0351
.0436
.0537
.0655
.0793
.0951
.1131
.1335
.1562
.1814
.2090
.2389
.2709
.3050
.3409
.3783
.4168
.4562
.4960
.02
.0003
.0005
.0006
.0009
.0013
.0018
.0024
.0033
.0044
.0059
.0078
.0102
.0132
.0170
.0217
.0274
.0344
.0427
.0526
.0643
.0778
.0934
1112
.1314
.1539
.1788
.2061
.2358
.2676
.3015
.3372
.3745
.4129
.4522
.4920
Probability
.03
.0003
.0004
.0006
.0009
.0012
.0017
.0023
.0032
.0043
.0057
.0075
.0099
.0129
.0166
.0212
.0268
.0336
.0418
.0516
.0630
.0764
.0918
.1093
.1292
.1515
.1762
.2033
.2327
.2643
.2981
.3336
.3707
.4090
.4483
.4880
.04
.0003
.0004
.0006
.0008
.0012
.0016
.0023
.0031
.0041
.0055
.0073
.0096
.0125
.0162
.0207
.0262
.0329
.0409
0505
.0618
.0749
.0901
.1075
.1271
.1492
.1736
.2005
.2296
.2611
.2946
.3300
.3669
.4052
.4443
.4840
Z
.05
.0003
.0004
.0006
.0008
.0011
.0016
.0022
.0030
.0040
.0054
.0071
.0094
0122
.0158
.0202
.0256
.0322
.0401
0495
.0606
.0735
.0885
.1056
.1251
.1469
.1711
.1977
2266
.2578
2912
.3264
.3632
.4013
.4404
.4801
.06
.0003
.0004
.0006
.0008
.0011
.0015
.0021
.0029
.0039
.0052
.0069
.0091
.0119
.0154
.0197
.0250
.0314
.0392
.0485
.0594
.0721
.0869
.1038
.1230
.1446
1685
.1949
.2236
.2546
2877
.3228
3594
.3974
.4364
4761
.07
0.0003
.0004
.0005
.0008
.0011
.0015
.0021
.0028
.0038
.0051
.0068
.0089
.0116
.0150
.0192
.0244
.0307
.0384
.0475
.0582
.0708
0853
.1020
.1210
.1423
1660
.1922
.2206
.2514
.2843
.3192
.3557
.3936
.4325
.4721
.08
.0003
.0004
.0005
.0007
.0010
.0014
.0020
.0027
.0037
.0049
.0066
.0087
.0113
0146
.0188
.0239
.0301
.0375
0465
0571
.0694
.09
.0002
.0003
0005
.0007
.0010
.0014
.0019
.0026
.0036
.0048
.0064
.0084
.0110
0143
.0183
0233
.0838
.1003
1190
.1401
.1635
.1894
.0294
.0367
0455
.0559
.0681
.0823
.0985
.1170
.1379
.1611
.1867
2177
2148
.2483 .2451
2810
.2776
.3156
3121
3520
.3483
.3897
.3859
.4286
4247
.4681
.4641
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