O First Sample Volumes (millions of shares traded) 1 Table of Critical t-Values 6.28 4.02 6.22 5.82 3.84 3.00 4.62 2.86 3.24 8.88 4.60 2.80 6.52 5.72 3.32 4,64 3.16 3.80 3.34 5.42 2.94 2,34 6.12 6.08 5.66 3.40 3.00 9.46 5.68 3.90 4.04 3.56 3.74 3.88 4.06 5.36 3.62 3.70 3.28 1.64 -Distribution Area in Rioht Tail O Second Sample Volumes (millions of shares traded) Degrees of Freedom 0,25 0.20 0.15 0.10 0.05 0.0025 0.001 0,0005 5.48 2.44 7.98 6.08 2.88 4.56 8.80 6.86 10.38 4.76 6.64 4.88 4.62 5.48 2.74 3.20 3.42 3.28 4.40 2.86 2.96 4.10 7.50 6.60 5.32 4.88 3.34 2.76 6.24 3.38 3.58 4.10 7.18 3.40 4.40 3.08 1.68 4.38 3.38 3.54 Print Done 133. od oo E e N del dde P122 2277 2222 西会三 … iri ciciricici ininici eicicicici dicicid cicic

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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The trade volume of a stock is the number of shares traded on a given day. The data in the first accompanying table, in millions (so that 6.28 represents 6,280,000 shares traded), represent the volume of a certain stock traded for a random
sample of 40 trading days in a certain year. A second random sample of 40 days in the same year resulted in the data in second accompanying table. Complete parts (a) through (d) below.
Click here to view the data for the first sample
Click here to view the data for the second sample.
Click here to view the table of critical t-values.
(a) Use the data from the first sample to compute a point estimate for the population mean number of shares traded per day in the year.
A point estimate for the population mean number of shares traded per day in the year is
million.
(Round to three decimal places as needed.)
Transcribed Image Text:The trade volume of a stock is the number of shares traded on a given day. The data in the first accompanying table, in millions (so that 6.28 represents 6,280,000 shares traded), represent the volume of a certain stock traded for a random sample of 40 trading days in a certain year. A second random sample of 40 days in the same year resulted in the data in second accompanying table. Complete parts (a) through (d) below. Click here to view the data for the first sample Click here to view the data for the second sample. Click here to view the table of critical t-values. (a) Use the data from the first sample to compute a point estimate for the population mean number of shares traded per day in the year. A point estimate for the population mean number of shares traded per day in the year is million. (Round to three decimal places as needed.)
First Sample Volumes (millions of shares traded)
Table of Critical t-Values
6.28
4.02
6.22
5.82
3.84
3.00
4.62
2.86
3.24
8.88
4.60
2.80
6.52
5.72
3.32
4.64
3.16
3.80
3.34
5.42
2.94
2.34
6.12
6.08
Area in
5.66
3.40
3.00
9.46
5.68
3.90
4.04
3.56
right tail
3.74
3.88
4.06
5.36
3.62
3.70
3.28
1.64
t-Distribution
Area in Right Tail
Degrees of
Freedom
0.25
0.20
0.15
0.10
0.05
0.025
0.02
0.01
0.005
0.0025
0.001
0.0005
Second Sample Volumes (millions of shares traded)
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
318.309 636.619
22.327
10.215
7173
5.893
31.599
12.924
8,610
6.869
3
4
5.48
2.44
7.98
6.08
2.88
4.56
8.80
6.86
1.134
0.718
0.711
0.706
0.703
2.447
2.365
2.306
2.262
2.228
5.959
5.408
5.041
4.781
4.587
1.440
1.415
0.906
0.896
0.889
0.883
1.943
1.895
1.860
1.833
1.812
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
10.38
4.76
6.64
4.88
4.62
5.48
2.74
3.20
7
1.119
1.108
1.100
1.093
8
1.397
1.383
1.372
3.42
3.28
4.40
2.86
2.96
4.10
7.50
6.60
4.297
5.32
4.88
3.34
2.76
6.24
3.38
3.58
4.10
10
0.700
0.879
4.144
1.363
1.356
1.350
2.328
2.303
2.282
2.264
2.249
3.106
3.055
3.012
2.977
2.947
4.025
11
12
13
14
15
0.697
0.695
0.694
0.692
0.691
0.876
0.873
0.870
0.868
0.866
1.088
1.083
1.079
1.076
1.074
1.796
1.782
1.771
1.761
1.753
2.201
2.179
2.160
2.145
2.131
2.718
2.681
2.650
2.624
2.602
3.497
3.428
3.372
3.326
4.437
4.318
4.221
4.140
4.073
7.18
3.40
4.40
3.08
1.68
4.38
3.38
3.54
3.930
3.852
1.345
1.341
3.787
3.733
3.286
Print
Done
0.865
0.863
0.862
0.861
1.337
1.333
1.330
1.328
1.325
1.746
1.740
1.734
1.729
1.725
2.235
2.224
2.214
2.205
2.197
2.583
2.567
2.552
2.539
2.528
2.120
16
17
18
19
20
0.690
0.689
0.688
0.688
0.687
1.071
1.069
1.067
1.066
1.064
2.110
2.101
2.093
2.086
2921
2.898
2.878
3.252
3.222
3.197
3.174
3.153
3.686
3.646
3.610
3.579
3.552
4.015
3.965
3.922
3.883
3.850
2.861
2.845
0.860
1.323
1.321
1.319
1.318
1.316
3.527
3.505
3.485
3.467
3.450
3.819
3.792
3.768
3.745
3.725
2.080
3.135
3.119
0.686
0.686
0.685
0.685
1.721
1.717
1.714
1.711
1.708
2.189
2.183
2.177
2.518
2.508
21
22
23
24
25
0.859
0.858
0.858
0.857
0.856
1.063
1.061
1.060
1.059
1.058
2.074
2.069
2.064
2.060
2.500
2.492
2.485
2.831
2.819
2.807
2.797
2.787
3.104
3.091
2.172
2.167
0.684
3.078
26
27
28
0.684
0.684
0.683
0.856
0.855
0.855
1.058
1.057
1.056
1.315
1.314
1.313
1.706
1.703
1.701
2.056
2.052
2.048
2.162
2.158
2.154
2.479
2.473
2.467
2.779
2.771
2.763
3.067
3.057
3.435
3.421
3.408
3.707
3.690
3.674
3.047
A
Transcribed Image Text:First Sample Volumes (millions of shares traded) Table of Critical t-Values 6.28 4.02 6.22 5.82 3.84 3.00 4.62 2.86 3.24 8.88 4.60 2.80 6.52 5.72 3.32 4.64 3.16 3.80 3.34 5.42 2.94 2.34 6.12 6.08 Area in 5.66 3.40 3.00 9.46 5.68 3.90 4.04 3.56 right tail 3.74 3.88 4.06 5.36 3.62 3.70 3.28 1.64 t-Distribution Area in Right Tail Degrees of Freedom 0.25 0.20 0.15 0.10 0.05 0.025 0.02 0.01 0.005 0.0025 0.001 0.0005 Second Sample Volumes (millions of shares traded) 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 4.773 318.309 636.619 22.327 10.215 7173 5.893 31.599 12.924 8,610 6.869 3 4 5.48 2.44 7.98 6.08 2.88 4.56 8.80 6.86 1.134 0.718 0.711 0.706 0.703 2.447 2.365 2.306 2.262 2.228 5.959 5.408 5.041 4.781 4.587 1.440 1.415 0.906 0.896 0.889 0.883 1.943 1.895 1.860 1.833 1.812 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 10.38 4.76 6.64 4.88 4.62 5.48 2.74 3.20 7 1.119 1.108 1.100 1.093 8 1.397 1.383 1.372 3.42 3.28 4.40 2.86 2.96 4.10 7.50 6.60 4.297 5.32 4.88 3.34 2.76 6.24 3.38 3.58 4.10 10 0.700 0.879 4.144 1.363 1.356 1.350 2.328 2.303 2.282 2.264 2.249 3.106 3.055 3.012 2.977 2.947 4.025 11 12 13 14 15 0.697 0.695 0.694 0.692 0.691 0.876 0.873 0.870 0.868 0.866 1.088 1.083 1.079 1.076 1.074 1.796 1.782 1.771 1.761 1.753 2.201 2.179 2.160 2.145 2.131 2.718 2.681 2.650 2.624 2.602 3.497 3.428 3.372 3.326 4.437 4.318 4.221 4.140 4.073 7.18 3.40 4.40 3.08 1.68 4.38 3.38 3.54 3.930 3.852 1.345 1.341 3.787 3.733 3.286 Print Done 0.865 0.863 0.862 0.861 1.337 1.333 1.330 1.328 1.325 1.746 1.740 1.734 1.729 1.725 2.235 2.224 2.214 2.205 2.197 2.583 2.567 2.552 2.539 2.528 2.120 16 17 18 19 20 0.690 0.689 0.688 0.688 0.687 1.071 1.069 1.067 1.066 1.064 2.110 2.101 2.093 2.086 2921 2.898 2.878 3.252 3.222 3.197 3.174 3.153 3.686 3.646 3.610 3.579 3.552 4.015 3.965 3.922 3.883 3.850 2.861 2.845 0.860 1.323 1.321 1.319 1.318 1.316 3.527 3.505 3.485 3.467 3.450 3.819 3.792 3.768 3.745 3.725 2.080 3.135 3.119 0.686 0.686 0.685 0.685 1.721 1.717 1.714 1.711 1.708 2.189 2.183 2.177 2.518 2.508 21 22 23 24 25 0.859 0.858 0.858 0.857 0.856 1.063 1.061 1.060 1.059 1.058 2.074 2.069 2.064 2.060 2.500 2.492 2.485 2.831 2.819 2.807 2.797 2.787 3.104 3.091 2.172 2.167 0.684 3.078 26 27 28 0.684 0.684 0.683 0.856 0.855 0.855 1.058 1.057 1.056 1.315 1.314 1.313 1.706 1.703 1.701 2.056 2.052 2.048 2.162 2.158 2.154 2.479 2.473 2.467 2.779 2.771 2.763 3.067 3.057 3.435 3.421 3.408 3.707 3.690 3.674 3.047 A
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