According to a recent article about individuals who have credit cards, the mean number öf čards per persoh With credit card includes the number of credit cards per participant. The results of the survey are attached below. (a) What is the variable of interest in this study? Is it qualitative or quantitative? (b) Do the results of the survey imply that the mean number of cards per individual is less than 4? Use the a =0.05 level Click here to view the data from the survey, Click here Click here Click here to view the table of critical t-values, significance. view the standard normal distribution table (page 1). o view the standard normal distribution table (page 2) (a) What is the variable of interest in this study? Is it qualitative r quantitative? The variable of interest is V It is a V variable (b) Do the results of the survey imply that the mean number of cards per individual is less than 4? Use the a = 0.05 level of significance. State the null and alternative hypotheses. Ho: H,: (Type integers or decimals. Do not round.) Determine the test statistic. (Round to two decimal places as needed.) Approximate the P-value. The P-value is in the range Make a conclusion regarding the hypothesis. V than the level of significance. the null hypothesis. There V sufficient evidence to claim that the mean number of credit cards is The P-value is
According to a recent article about individuals who have credit cards, the mean number öf čards per persoh With credit card includes the number of credit cards per participant. The results of the survey are attached below. (a) What is the variable of interest in this study? Is it qualitative or quantitative? (b) Do the results of the survey imply that the mean number of cards per individual is less than 4? Use the a =0.05 level Click here to view the data from the survey, Click here Click here Click here to view the table of critical t-values, significance. view the standard normal distribution table (page 1). o view the standard normal distribution table (page 2) (a) What is the variable of interest in this study? Is it qualitative r quantitative? The variable of interest is V It is a V variable (b) Do the results of the survey imply that the mean number of cards per individual is less than 4? Use the a = 0.05 level of significance. State the null and alternative hypotheses. Ho: H,: (Type integers or decimals. Do not round.) Determine the test statistic. (Round to two decimal places as needed.) Approximate the P-value. The P-value is in the range Make a conclusion regarding the hypothesis. V than the level of significance. the null hypothesis. There V sufficient evidence to claim that the mean number of credit cards is The P-value is
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
100%

Transcribed Image Text:According to a recent article about individuals who have credit cards, the mean number of cards per person with credit cards is 4. To test this result a random survey of 60 individuals who have credlt Carus
includes the number of credit cards per participant. The results of the survey are attached below.
(a) What is the variable of interest in this study? Is it qualitative or quantitative?
(b) Do the results of the survey imply that the mean number of cards per individual is less than 4? Use the a = 0.05 level of significance.
Click here to view the data from the survey.
Click here to view the standard normal distribution table (page 1).
Click here to view the standard normal distribution table (page 2).
Click here to view the table of critical t-values.
... ..
(a) What is the variable of interest in this study? Is it qualitative or quantitative?
The variable of interest is
It is a
variable.
%3D
(b) Do the results of the survey imply that the mean number of cards per individual is less than 4? Use the a= 0.05 level of significance. State the null and alternative hypotheses.
Но
H1:
(Type integers or decimals. Do not round.)
Determine the test statistic.
%3D
(Round to two decimal places as needed.)
Approximate the P-value.
The P-value is in the range
Make a conclusion regarding the hypothesis.
than the level of significance.
V the null hypothesis. There
sufficient evidence to claim that the mean number of credit cards is
V4.
The P-value is

Transcribed Image Text:n critical values table
rd normal distribution table (page 1)
Standard Normal Distribution
t-Distribution
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.0
Area in Right Tail
rees of
dom
0.02
0.01
0.005
0.0025
0.001
0.0005
0.0003
0.0004
0.0005
0.000
0.000
0.000
0.025
0.0003
0.0004
0.0006
0.0008
0.0011
0.0003
0.0004
0.0005
0.05
0.0003
0.0004
0.0006
0.0003
0.0004
0.0006
0.0008
0.0012
0.0003
0.10
0.0003
0.0005
0.0007
0.0010
0.0013
0.0003
0.0005
0.0007
0.0003
0.0005
0.0006
0.15
-3.4
-33
-3.2
-31
-3.0
0.25
0.20
0.0004
0.0006
0.0008
0.0011
1.000
0.816
0.765
0.741
0.727
1.376
1.061
0.978
0.941
0.920
1.963
1.386
1.250
1.190
1.156
3.078
1.886
1.638
1.533
1.476
6.314
2.920
2.353
2.132
2.015
12.706
4.303
3.182
2.776
2.571
15.894
4.849
3.482
2.999
2.757
31.821
6.965
4.541
3.747
3.365
63.657
9.925
5.841
4.604
4.032
127.321
14.089
7.453
5.598
4.773
318.309
22.327
10.215
Z173
5.893
636.619
31.599
12.924
8.610
6.869
0.0009
0.0013
0.0009
0.0013
0.0009
0.0012
0.0008
0.0011
0.0007
0.0010
0.000
0.001
0.0018
0.0025
0.0018
0.0024
0.0033
0.0044
0.0059
0.0016
0.0022
0.0030
0.0040
0.0054
0.0014
0.0020
0.0027
0.0037
0.0049
0.001
0.001
0.002
0.003
0.004
0.0015
-29
-28
-2.7
0.0019
0.0026
0.0035
0.0047
0.0062
0.0017
0.0023
0.0032
0.0016
0.0023
0.0031
0.0015
0.0021
0.0028
0.0021
0.0029
1.943
1.895
1.860
2.447
2.365
2.306
2.262
2.228
2.612
2.517
2.449
2.398
2.359
3.143
2.998
2.896
2.821
2.764
3.707
3.499
3.355
3.250
3.169
4.317
4.029
3.833
3.690
3.581
5.208
4.785
4.501
4.297
4.144
5.959
5.408
5.041
4.781
4.587
0.0034
0.718
0.711
0.706
0.703
0.700
1.134
0.896 1.119
0.889 1.108
0.883 1.100
0.879 1.093
1.440
1.415
1.397
1.383
1.372
0.906
-2.6
-2.5
0.0045
0.0060
0.0043
0.0057
0.0041
0.0055
0.0039
0.0052
0.0038
0.0051
-24
-2.3
-2.2
0.0082
0.0107
0.0139
0.0080
0.0104
0.0136
0.0078
0.0102
0.0132
0.0075
0.0099
0.0129
0.0166
0.0212
0.0073
0.0096
0.0125
0.0162
0.0207
0.0071
0.0094
0.0122
0.0158
0.0069
0.0091
0.0119
0.0068
0.0089
0.0116
0.0066
0.0087
0.0113
0.00€
0.008
0.011
0.697
0.695
0.694
0.692
0.691
1.363
1.356
1.350
1.345
1.341
1.796
1.782
1.771
1.761
1.753
1.833
1.812
2.201
2.179
2.160
2.145
2.131
2.328
2.303
2.282
2.264
2.249
2.718
2.681
2.650
2.624
2.602
3.106
3.055
3.012
2.977
2.947
3.497
3.428
3372
3.326
3.286
4.025
3.930
3.852
3.787
3.733
4.437
4.318
4.221
4.140
4.073
-2.1
-2.0
0.0179
0.0228
0.876 1.088
0.873
1.083
0.0174
0.0170
0.0217
0.0154
0.0197
0.0150
0.0192
0.0146
0.0188
0.014
0.018
0.0222
0.0202
0.870
1.079
-1.9
-1.8
-1.7
0.0287
0.0359
0.0281
0.0351
0.0436
0.0274
0.0344
0.0427
0.0526
0.0643
0.0268
0.0336
0.0418
1.076
1.074
0.0262
0.0329
0.0409
0.0256
0.0322
0.0250
0.0314
0.0392
0.0244
0.0307
0.0384
0.0239
0.0301
0.0375
0.02
0.02
0.03
0.868
0.866
0.0446
0.0401
0.690
0.689
0.688
0.688
0.865
0.863
0.862
0.861
0.860
1.071
1.069
1.067
1.066
1.064
1.337
1.333
1.330
1.328
1.325
1.746
1.740
1.734
1.729
1.725
2.120
2.110
2.101
2.093
2.086
2.235
2.224
2.214
2.205
2.197
2.583
2.567
2.552
2.539
2.528
2.921
2.898
2.878
2.861
2.845
3.252
3.222
3.197
3.174
3.153
3.686
3.646
3.610
3.579
3.552
4.01:
3.96!
3.92
3.88
3.85
-1.6
-1.5
0.0548
0.0668
0.0537
0.0655
0.0516
0.0630
0.0505
0.0618
0.0495
0.0606
0.0485
0.0594
0.0475
0.0582
0.0465
0.0571
0.04
0.05
0.0808
0.0968
0.1151
0.1357
0.1587
0.0793
0.0951
0.1131
0.0778
0.0934
0.1112
0.0764
0.0918
0.1093
0.0749
0.0901
0.1075
0.0735
0.0885
0.1056
0.0721
0.0869
0.1038
0.1230
0.1446
0.0708
0.0694
0.0838
0.1003
0.06
0.08
0,09
-13
0.0853
0.1020
0.687
1323
1.321
1.319
1.318
1.316
1.721
1.717
1.714
1.711
1.708
2.080
2.074
2.069
2.064
2.060
2.189
2.183
2.177
2.172
2.167
2.518
2.508
2.500
2.492
2.485
2.831
2.819
2.807
2.797
2.787
3.135
3.119
3.104
3.091
3.078
3.527
3.505
3.485
3.467
3.450
3.81
3.79
3.76
3.74
3.72
0.859 1.063
0.686
0.686
0.685
0.685
0.684
-1.1
-1.0
0.1335
0.1562
0.1314
0.1539
0.1292
0.1515
0.1271
0.1492
0.1251
0.1469
0.1210
0.1423
0.1190
0.1401
0.11
0.13
0.858
1.061
0.858 1.060
0.1841
0.2119
0.2420
-09
0.1814
0.1788
0.2061
0.2358
0.1762
0.2033
0.2327
0.2643
0.2981
0.1736
0.1711
0.1977
0.2266
0.1685
0.1949
0.2236
0.1660
0.1922
0.2206
0.2514
0.2843
0.1635
0.1894
0.2177
0.2483
0.2810
0.16
0.18
0.21
0.24
0.27
0.857
1.059
-08
-0.7
0.2090
0.2389
0.2005
0.2296
0.2611
0.2946
0.856 1.058
2.056
2.052
2.048
2.045
2.042
2.479
2.473
2.467
2.462
2.457
2.779
2.771
2.763
2.756
2.750
3.067
3.057
3.047
3.038
3.030
3.435
3.421
3.408
3.396
3.385
3.70
3.6
3.6
3.6
3.6
0.2676
0.3015
1.315
1.314
1.313
1.311
1.310
-0.6
-05
0.2743
0.3085
2.162
2.158
2.154
2.150
2.147
0.2709
0.3050
0.856 1.058
0.684
0.684
0.683
0.683
0.683
1.706
1.703
1.701
1.699
1.697
0.2578
0.2912
0.2546
0.2877
0.855
1.057
0.855
1.056
-04
-03
-0.2
0.3409
0.3783
0.4168
0.3446
0.3821
0.4207
0.3372
0.3745
0.4129
0.3336
0.3707
0.4090
0.3300
0.3669
0.3264
0.3632
0.4013
0.3228
0.3594
0.3192
0.3557
0.3936
0.3156
0.3520
0.3897
0.31
0.34
0.38
0.854
0.854
1.055
1.055
0.4052
0.3974
0.682
0.8
1.309
2.453
3.022
375
i normal distribution table (page 2)
*
er of credit cards per participant
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.00
0.01
0.5160
0.5557
0.5948
0.6331
0.6700
0.5239
0.5636
0.6026
0.6406
0.6772
0.5279
0.5675
0.6064
0.6443
0.6808
0.5319
0,5714
0.6103
0.53
0.57
0.61
0.5199
0.5000
0.5398
0.5793
0.5040
0.5438
0.5832
0.5080
0.5478
0.5871
0.6255
0.6628
0.5120
0.5517
0.5910
0.6293
0.6664
0,0
0.5596
0.5987
0.1
0.2
0.6179
0.6554
0.6217
0.6591
0.6368
0.6736
0.6480
0.6844
0.65
0.68
0.3
0.4
0.7190
0.7517
0.7823
0.8106
0.8365
0.72
0.7
0.7
0.7088
0.7422
0.7734
0.7123
0.7454
0.7764
0.7157
0.7486
2
4
0.7054
0.7389
0.7704
3
0.5
0.6
0.7
0.6915
0.7257
0.7580
0.7881
0.8159
0.6950
0.7291
0.7611
0.6985
0.7324
0.7642
0.7019
0.7357
0.7673
0.7794
0.8078
0.8340
0.7967
0.8238
0.7995
0.8264
0.8023
0.8289
0.8051
0.8315
0.81
0.8
1
3
4
0.7939
0.7910
0.8186
0.8
0.9
0.8212
0.8
0.8
0.9
4
0.8531
0.8749
0.8944
0.9115
0.9265
0,8554
0.8770
0.8962
0.8577
0.8790
0.8980
0.9147
0.9292
0.8599
0.8810
0.8997
7
0.8508
0.8729
0.8925
2
0.8438
0.8665
0.8869
0.9049
0.9207
0.8461
0.8686
0.8888
0.8485
0.8708
0.8907
0.9082
0.9236
4
1.0
1.1
1.2
1.3
1.4
0.8413
0.8643
0.8849
0.9032
0.9192
0,9066
0.9222
0.9099
0.9251
0.9131
0.9279
0.9162
0.9306
0.9
0.9
2
4
4
0.9357
0.9474
0.9573
0.9370
0.9484
0.9582
0.9664
0.9732
0.9382
0.9495
0.9591
0.9394
0.9505
0.9599
0.9406
0.9515
0.9608
0.9686
0.9750
0.9418
0.9525
0.9616
0.9429
0.9535
0.9625
0.9
0.9
0.9
3
0.9332
0.9452
0.9554
0.9641
0.9713
0.9345
0.9463
0.9564
0.9649
0.9719
3
1.5
1.6
1.7
1.8
1.9
8
0.9
0.9678
0.9744
0.9693
0.9756
0.9699
0.9761
4
4
0.9671
0.9656
0.9726
0.9
2.
0.9738
0.9803
0.9846
0.9881
0.9808
0.9850
0.9884
0.9911
0.9932
0.9812
0.9854
0.9887
0.9913
0.9934
0.S
0.5
0.5
0.4
0.4
0.9793
0.9838
0.9772
0.9821
0.9861
0.9893
0.9918
0.9778
0.9826
0.9864
0.9783
0.9830
0.9868
0.9898
0.9922
0.9788
0.9834
0.9871
0.9901
0.9925
0.9798
0.9842
0.9878
0.9906
0.9929
4
2
2.0
2.1
2.2
3
4
0.9875
0.9904
0.9927
0.9909
0.9931
2.3
2.4
0.9896
0.9920
10
4
1
3
0.9943
0.9957
0.9968
0.9977
0.9983
0.9945
0.9959
0.9969
0.9946
0.9960
0.9970
0.9948
0.9961
0.9971
0.9949
0.9962
0.9972
0.9979
0.9985
0.9951
0.9963
0.9973
0.9980
0.9986
2
0.9941
0.9956
0.9967
0.9976
0.9982
0.9940
2.5
2.6
2.7
0.9938
0.9953
0.9965
0.9974
0.9981
4
16
0.9955
0.9966
0.9975
0.9982
0.
0.9978
0.9984
0.9977
0.9979
2.8
2.9
4
0.9984
0.9985
0.
0.9988
0.9991
0.9994
0.9988
0.9992
0.9994
0 0006
0.9989
0.9992
0.9994
0 0006
0.9989
0.9992
0.9994
0.9989
0.9992
0.9995
n 0006
0.9990
0.9993
0.9995
0 0006
0.9987
0.9990
0.9987
0.9991
0.9993
0.9987
0.9991
3.0
3.1
0.
C Pic Stitch
3.2
37
0.90
0,9904
0 0006
4 4 5 744 3221
N 3 2 N 3
3 4
43
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