Critical Values of the t-Distribution a v 0.40 0.30 0.20 0.15 0.10 0.05 0.025 1 0.325 0.727 1.376 1.963 3.078 6.314 12.706 2 0.289 0.617 1.061 1.386 1.886 2.920 4.303 3 0.277 0.584 0.978 1.250 1.638 2.353 3.182 4 0.271 0.569 0.941 1.190 1.533 2.132 2.776 5 0.267 0.559 0.920 1.156 1.476 2.015 2.571 6 0.265 0.553 0.906 1.134 1.440 1.943 2.447 7 0.263 0.549 0.896 1.119 1.415 1.895 2.365 8 0.262 0.546 0.889 1.108 1.397 1.860 2.306 9 0.261 0.543 0.883 1.100 1.383 1.833 2.262 10 0.260 0.542 0.879 1.093 1.372 1.812 2.228 0.260 0.540 0.876 1.088 1.363 1.796 2.201 0.259 0.539 0.873 1.083 1.356 1.782 2.179 0.259 0.538 0.870 1.079 1.350 1.771 2.160 0.258 0.537 0.868 1.076 1.345 1.761 2.145 0.258 0.536 0.866 1.074 1.341 1.753 2.131 0.258 0.535 0.865 1.071 1.337 1.746 2.120 0.257 0.534 0.863 1.069 1.333 1.740 2.110 0.257 0.534 0.862 1.067 1.330 1.734 2.101 120 2222222222229828 0.257 0.533 0.861 1.066 1.328 1.729 2.093 20 0.257 0.533 0.860 1.064 1.325 1.725 2.086 0.257 0.532 0.859 1.063 1.323 1.721 2.080 0.256 0.532 0.858 1.061 1.321 1.717 2.074 0.256 0.532 0.858 1.060 1.319 1.714 2.069 24 0.256 0.531 0.857 1.059 1.318 1.711 2.064 0.256 0.531 0.856 1.058 1.316 1.708 2.060 0.256 0.531 0.856 1.058 1.315 1.706 2.056 0.256 0.531 0.855 1.057 1.314 1.703 2.052 0.256 0.530 0.855 1.056 1.313 1.701 2.048 0.256 0.530 0.854 1.055 1.311 1.699 2.045 0.256 0.530 0.854 1.055 1.310 1.697 2.042 40 0.255 0.529 0.851 1.050 1.303 1.684 2.021 60 0.254 0.527 0.848 1.045 1.296 1.671 2.000 0.254 0.526 0.845 1.041 1.289 1.658 1.980 0.253 0.524 0.842 1.036 1.282 1.645 1.960 > > 14 Critical Values of the t-Distribution a บ 0.02 0.015 0.01 0.0075 0.005 0.0025 0.0005 120 15.895 21.205 31.821 42.433 63.657 127.321 636.619 4.849 5.643 6.965 8.073 9.925 14.089 31.599 3 3.482 3.896 4.541 5.047 5.841 7.453 12.924 4 2.999 3.298 3.747 4.088 4.604 5.598 8.610 5 2.757 3.003 3.365 3.634 4.032 4.773 6.869 120 STRADURA 222222228 9828 2.612 2.829 3.143 3.372 3.707 4.317 5.959 2.517 2.715 2.998 3.203 3.499 4.029 5.408 2.449 2.634 2.896 3.085 3.355 3.833 5.041 2.398 2.574 2.821 2.998 3.250 3.690 4.781 2.359 2.527 2.764 2.932 3.169 3.581 4.587 2.328 2.491 2.718 2.879 3.106 3.497 4.437 2.303 2.461 2.681 2.836 3.055 3.428 4.318 2.282 2.436 2.650 2.801 3.012 3.372 4.221 2.264 2.415 2.624 2.771 2.977 3.326 4.140 2.249 2.397 2.602 2.746 2.947 3.286 4.073 2.235 2.382 2.583 2.724 2.921 3.252 4.015 2.224 2.368 2.567 2.706 2.898 3.222 3.965 2.214 2.356 2.552 2.689 2.878 3.197 3.922 2.205 2.346 2.539 2.674 2.861 3.174 3.883 2.197 2.336 2.528 2.661 2.845 3.153 3.850 2.189 2.328 2.518 2.649 2.831 3.135 3.819 2.183 2.320 2.508 2.639 2.819 3.119 3.792 2.177 2.313 2.500 2.629 2.807 3.104 3.768 24 2.172 2.307 2.492 2.620 2.797 3.091 3.745 2.167 2.301 2.485 2.612 2.787 3.078 3.725 26 2.162 2.296 2.479 2.605 2.779 3.067 3.707 2.158 2.291 2.473 2.598 2.771 3.057 3.690 2.154 2.286 2.467 2.592 2.763 3.047 3.674 2.150 2.282 2.462 2.586 2.756 3.038 3.659 2.147 2.278 2.457 2.581 2.750 3.030 3.646 2.123 2.250 2.423 2.542 2.704 2.971 3.551 2.099 2.223 2.390 2.504 2.660 2.915 3.460 2.076 2.196 2.358 2.468 2.617 2.860 3.373 2.054 2.170 2.326 2.432 2.576 2.807 3.291 |- |- < > Chemical compound data x (°C) y (grams) 0 4 2 4 15 14 15 12 30 23 27 28 45 41 42 44 60 51 52 49 75 53 58 52 fitted linear regression equation y=4.4127 +0.7283x -

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 31PPS
icon
Related questions
Question

The amounts of a chemical compound y that dissolved in 100 grams of water at various temperatures x were recorded. The data were coded and recorded in the accompanying table. Use this information to answer parts a through c.

a) Evaluate s^2

s^2 = ____ (Round to two decimal places as needed.)

b) Construct a 99% confidence interval for Beta 0
_____ < Beta 0 < ____ (Round to three decimal places as needed.)

c) Construct a 99% confidence interval for Beta 1

_____ < Beta 1 < ____ (Round to three decimal places as needed.)

Critical Values of the t-Distribution
a
v
0.40
0.30
0.20
0.15
0.10
0.05
0.025
1
0.325
0.727
1.376
1.963
3.078
6.314
12.706
2
0.289
0.617
1.061
1.386
1.886
2.920
4.303
3
0.277
0.584
0.978
1.250
1.638
2.353
3.182
4
0.271
0.569
0.941
1.190
1.533
2.132
2.776
5
0.267
0.559
0.920
1.156
1.476
2.015
2.571
6
0.265
0.553
0.906
1.134
1.440
1.943
2.447
7
0.263
0.549
0.896
1.119
1.415
1.895
2.365
8
0.262
0.546
0.889
1.108
1.397
1.860
2.306
9
0.261
0.543
0.883
1.100
1.383
1.833
2.262
10
0.260
0.542
0.879
1.093
1.372
1.812
2.228
0.260
0.540
0.876
1.088
1.363
1.796
2.201
0.259
0.539
0.873
1.083
1.356
1.782
2.179
0.259
0.538
0.870
1.079
1.350
1.771
2.160
0.258
0.537
0.868
1.076
1.345
1.761
2.145
0.258
0.536
0.866
1.074
1.341
1.753
2.131
0.258
0.535
0.865
1.071
1.337
1.746
2.120
0.257
0.534
0.863
1.069
1.333
1.740
2.110
0.257
0.534
0.862
1.067
1.330
1.734
2.101
120
2222222222229828
0.257
0.533
0.861
1.066
1.328
1.729
2.093
20
0.257
0.533
0.860
1.064
1.325
1.725
2.086
0.257
0.532
0.859
1.063
1.323
1.721
2.080
0.256
0.532
0.858
1.061
1.321
1.717
2.074
0.256
0.532
0.858
1.060
1.319
1.714
2.069
24
0.256
0.531
0.857
1.059
1.318
1.711
2.064
0.256
0.531
0.856
1.058
1.316
1.708
2.060
0.256
0.531
0.856
1.058
1.315
1.706
2.056
0.256
0.531
0.855
1.057
1.314
1.703
2.052
0.256
0.530
0.855
1.056
1.313
1.701
2.048
0.256
0.530
0.854
1.055
1.311
1.699
2.045
0.256
0.530
0.854
1.055
1.310
1.697
2.042
40
0.255
0.529
0.851
1.050
1.303
1.684
2.021
60
0.254
0.527
0.848
1.045
1.296
1.671
2.000
0.254
0.526
0.845
1.041
1.289
1.658
1.980
0.253
0.524
0.842
1.036
1.282
1.645
1.960
> > 14
Critical Values of the t-Distribution
a
บ
0.02
0.015
0.01
0.0075
0.005
0.0025
0.0005
120
15.895
21.205
31.821
42.433
63.657
127.321
636.619
4.849
5.643
6.965
8.073
9.925
14.089
31.599
3
3.482
3.896
4.541
5.047
5.841
7.453
12.924
4
2.999
3.298
3.747
4.088
4.604
5.598
8.610
5
2.757
3.003
3.365
3.634
4.032
4.773
6.869
120
STRADURA 222222228 9828
2.612
2.829
3.143
3.372
3.707
4.317
5.959
2.517
2.715
2.998
3.203
3.499
4.029
5.408
2.449
2.634
2.896
3.085
3.355
3.833
5.041
2.398
2.574
2.821
2.998
3.250
3.690
4.781
2.359
2.527
2.764
2.932
3.169
3.581
4.587
2.328
2.491
2.718
2.879
3.106
3.497
4.437
2.303
2.461
2.681
2.836
3.055
3.428
4.318
2.282
2.436
2.650
2.801
3.012
3.372
4.221
2.264
2.415
2.624
2.771
2.977
3.326
4.140
2.249
2.397
2.602
2.746
2.947
3.286
4.073
2.235
2.382
2.583
2.724
2.921
3.252
4.015
2.224
2.368
2.567
2.706
2.898
3.222
3.965
2.214
2.356
2.552
2.689
2.878
3.197
3.922
2.205
2.346
2.539
2.674
2.861
3.174
3.883
2.197
2.336
2.528
2.661
2.845
3.153
3.850
2.189
2.328
2.518
2.649
2.831
3.135
3.819
2.183
2.320
2.508
2.639
2.819
3.119
3.792
2.177
2.313
2.500
2.629
2.807
3.104
3.768
24
2.172
2.307
2.492
2.620
2.797
3.091
3.745
2.167
2.301
2.485
2.612
2.787
3.078
3.725
26
2.162
2.296
2.479
2.605
2.779
3.067
3.707
2.158
2.291
2.473
2.598
2.771
3.057
3.690
2.154
2.286
2.467
2.592
2.763
3.047
3.674
2.150
2.282
2.462
2.586
2.756
3.038
3.659
2.147
2.278
2.457
2.581
2.750
3.030
3.646
2.123
2.250
2.423
2.542
2.704
2.971
3.551
2.099
2.223
2.390
2.504
2.660
2.915
3.460
2.076
2.196
2.358
2.468
2.617
2.860
3.373
2.054
2.170
2.326
2.432
2.576
2.807
3.291
|- |-
< >
Transcribed Image Text:Critical Values of the t-Distribution a v 0.40 0.30 0.20 0.15 0.10 0.05 0.025 1 0.325 0.727 1.376 1.963 3.078 6.314 12.706 2 0.289 0.617 1.061 1.386 1.886 2.920 4.303 3 0.277 0.584 0.978 1.250 1.638 2.353 3.182 4 0.271 0.569 0.941 1.190 1.533 2.132 2.776 5 0.267 0.559 0.920 1.156 1.476 2.015 2.571 6 0.265 0.553 0.906 1.134 1.440 1.943 2.447 7 0.263 0.549 0.896 1.119 1.415 1.895 2.365 8 0.262 0.546 0.889 1.108 1.397 1.860 2.306 9 0.261 0.543 0.883 1.100 1.383 1.833 2.262 10 0.260 0.542 0.879 1.093 1.372 1.812 2.228 0.260 0.540 0.876 1.088 1.363 1.796 2.201 0.259 0.539 0.873 1.083 1.356 1.782 2.179 0.259 0.538 0.870 1.079 1.350 1.771 2.160 0.258 0.537 0.868 1.076 1.345 1.761 2.145 0.258 0.536 0.866 1.074 1.341 1.753 2.131 0.258 0.535 0.865 1.071 1.337 1.746 2.120 0.257 0.534 0.863 1.069 1.333 1.740 2.110 0.257 0.534 0.862 1.067 1.330 1.734 2.101 120 2222222222229828 0.257 0.533 0.861 1.066 1.328 1.729 2.093 20 0.257 0.533 0.860 1.064 1.325 1.725 2.086 0.257 0.532 0.859 1.063 1.323 1.721 2.080 0.256 0.532 0.858 1.061 1.321 1.717 2.074 0.256 0.532 0.858 1.060 1.319 1.714 2.069 24 0.256 0.531 0.857 1.059 1.318 1.711 2.064 0.256 0.531 0.856 1.058 1.316 1.708 2.060 0.256 0.531 0.856 1.058 1.315 1.706 2.056 0.256 0.531 0.855 1.057 1.314 1.703 2.052 0.256 0.530 0.855 1.056 1.313 1.701 2.048 0.256 0.530 0.854 1.055 1.311 1.699 2.045 0.256 0.530 0.854 1.055 1.310 1.697 2.042 40 0.255 0.529 0.851 1.050 1.303 1.684 2.021 60 0.254 0.527 0.848 1.045 1.296 1.671 2.000 0.254 0.526 0.845 1.041 1.289 1.658 1.980 0.253 0.524 0.842 1.036 1.282 1.645 1.960 > > 14 Critical Values of the t-Distribution a บ 0.02 0.015 0.01 0.0075 0.005 0.0025 0.0005 120 15.895 21.205 31.821 42.433 63.657 127.321 636.619 4.849 5.643 6.965 8.073 9.925 14.089 31.599 3 3.482 3.896 4.541 5.047 5.841 7.453 12.924 4 2.999 3.298 3.747 4.088 4.604 5.598 8.610 5 2.757 3.003 3.365 3.634 4.032 4.773 6.869 120 STRADURA 222222228 9828 2.612 2.829 3.143 3.372 3.707 4.317 5.959 2.517 2.715 2.998 3.203 3.499 4.029 5.408 2.449 2.634 2.896 3.085 3.355 3.833 5.041 2.398 2.574 2.821 2.998 3.250 3.690 4.781 2.359 2.527 2.764 2.932 3.169 3.581 4.587 2.328 2.491 2.718 2.879 3.106 3.497 4.437 2.303 2.461 2.681 2.836 3.055 3.428 4.318 2.282 2.436 2.650 2.801 3.012 3.372 4.221 2.264 2.415 2.624 2.771 2.977 3.326 4.140 2.249 2.397 2.602 2.746 2.947 3.286 4.073 2.235 2.382 2.583 2.724 2.921 3.252 4.015 2.224 2.368 2.567 2.706 2.898 3.222 3.965 2.214 2.356 2.552 2.689 2.878 3.197 3.922 2.205 2.346 2.539 2.674 2.861 3.174 3.883 2.197 2.336 2.528 2.661 2.845 3.153 3.850 2.189 2.328 2.518 2.649 2.831 3.135 3.819 2.183 2.320 2.508 2.639 2.819 3.119 3.792 2.177 2.313 2.500 2.629 2.807 3.104 3.768 24 2.172 2.307 2.492 2.620 2.797 3.091 3.745 2.167 2.301 2.485 2.612 2.787 3.078 3.725 26 2.162 2.296 2.479 2.605 2.779 3.067 3.707 2.158 2.291 2.473 2.598 2.771 3.057 3.690 2.154 2.286 2.467 2.592 2.763 3.047 3.674 2.150 2.282 2.462 2.586 2.756 3.038 3.659 2.147 2.278 2.457 2.581 2.750 3.030 3.646 2.123 2.250 2.423 2.542 2.704 2.971 3.551 2.099 2.223 2.390 2.504 2.660 2.915 3.460 2.076 2.196 2.358 2.468 2.617 2.860 3.373 2.054 2.170 2.326 2.432 2.576 2.807 3.291 |- |- < >
Chemical compound data
x (°C)
y (grams)
0
4
2
4
15
14
15
12
30
23
27
28
45
41
42
44
60
51
52
49
75
53
58
52
fitted linear regression equation
y=4.4127 +0.7283x
-
Transcribed Image Text:Chemical compound data x (°C) y (grams) 0 4 2 4 15 14 15 12 30 23 27 28 45 41 42 44 60 51 52 49 75 53 58 52 fitted linear regression equation y=4.4127 +0.7283x -
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