One year, the mean age of an inmate on death row was 41.1 years. A sociologist wondered whether the mean age of a death-row inmate has changed since finds that their mean age is 39.8, with a standard deviation of 9.1. Construct a 95% confidence interval about the mean age What does the interval imply? Click the icon to view the table of critical t-values. 4 Choose the correct hypotheses. KIXED Ho ▼ H₂ V (Type integers or decimals. Do not round.) Construct a 95% confidence interval about the mean age. With 95% confidence, the mean age of a death row inmate is between years and years. (Round to two decimal places as needed) What does the interval imply? OA. Since the mean age from the earlier year is contained in the interval, there is sufficient evidence to conclude that the mean age had changed OB. Since the mean age from the earlier year is not contained in the interval, there is sufficient evidence to conclude that the mean age had changed. OC. Since the mean age from the earlier year is contained in the interval, there is not sufficient evidence to conclude that the mean age had changed. OD. Since the mean age from the earlier year is not contained in the interval, there is not sufficient evidence to conclude that the mean age had changed.
One year, the mean age of an inmate on death row was 41.1 years. A sociologist wondered whether the mean age of a death-row inmate has changed since finds that their mean age is 39.8, with a standard deviation of 9.1. Construct a 95% confidence interval about the mean age What does the interval imply? Click the icon to view the table of critical t-values. 4 Choose the correct hypotheses. KIXED Ho ▼ H₂ V (Type integers or decimals. Do not round.) Construct a 95% confidence interval about the mean age. With 95% confidence, the mean age of a death row inmate is between years and years. (Round to two decimal places as needed) What does the interval imply? OA. Since the mean age from the earlier year is contained in the interval, there is sufficient evidence to conclude that the mean age had changed OB. Since the mean age from the earlier year is not contained in the interval, there is sufficient evidence to conclude that the mean age had changed. OC. Since the mean age from the earlier year is contained in the interval, there is not sufficient evidence to conclude that the mean age had changed. OD. Since the mean age from the earlier year is not contained in the interval, there is not sufficient evidence to conclude that the mean age had changed.
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
Transcribed Image Text:One year, the mean age of an inmate on death row was 41.1 years. A sociologist wondered whether the mean age of a death-row inmate has changed since then. She randomly selects 32 death-row inmates and
finds that their mean age is 39.8, with a standard deviation of 9.1. Construct a 95% confidence interval about the mean age. What does the interval imply?
Click the icon to view the table of critical t-values.
his
Choose the correct hypotheses.
Ho-
H₁
(Type integers or decimals. Do not round.)
Construct a 95% confidence interval about the mean age.
With 95% confidence, the mean age of a death row inmate is between
What does the interval imply?
years and
years. (Round to two decimal places as needed.)
OA. Since the mean age from the earlier year is contained in the interval, there is sufficient evidence to conclude that the mean age had changed.
OB. Since the mean age from the earlier year is not contained in the interval, there is sufficient evidence to conclude that the mean age had changed
OC. Since the mean age from the earlier year is contained in the interval, there is not sufficient evidence to conclude that the mean age had changed.
OD. Since the mean age from the earlier year is not contained in the interval, there is not sufficient evidence to conclude that the mean age had changed
Transcribed Image Text:t-Distribution Critical Values Table
Degrees of
Freedom 0.25
STKIE MAANS SERRA
13
14
15
16
18
19
20
0.718 0.906 1.134
0.711 0.896 1.119
0.706 0.889 1.108
0.703 0.883 1.100
0.700 0.879 1.093
0.697
right tail
0.20 0.15 0.10
1.000 1.376 1.963 3,078 6.314
-0.816 1061 1.386
2.920
1.886
0.765
1.250
0.978
2.353
1.638
0.741
0.727 0.920
1.533
2.132
1.190
0.941
1.156
1.476
2.015
0.695
0.694
0.692
0.691
0.690
0.689
0.688
0.688
0.687
0.876
0.873
0.870
0.868
0.866
***
1.440
1.415
1.397
1.383
1.372
r-Distribution
Area in Right Tail
0.05 0.025 0.028
0.865 1.071
1.337
0.863
1.069
1.333
0.862
1.067
1.330
0.861
1.066 1.328
0.860 1064
1.325
1.943
1.805
1.860
1.833
1812
1.088
1.363 1.796
1.083
1.356
1.782
1.350
1.079
1.771
1.076
1.345
1.761
1074
1.341
1.753
1.746
1.740
1.734
1.729
1.725
2.447
2.612
2.365
2.517
2.306
2.449
2.262
2.398
2.228 2.359
12.706 15.894 31.821 63.657 127321 318.309
4.303 4.849 6.965
22.327
9.925 14.089
4.541 5.841 7.453
3.182
3.482
10.215
2.776
2.999
3.747
4.604
5.598
2.571
2.757
3.365
4.032
4.773
2.201
2.179
2.160
2.145
2.131
2.328
2.303
2.282
2.264
2.249
0.01
2.120
2.235
2.110 2.224
2.101
2.214
2.093
2.205
2.086
2.197
3.143
2.098
2.896
2.821
2.764
0.005 0.025 0.01 0.0
2.583
2.567
2.552
2.530
2.528
3.707
3.499
3.355
3.250
3.169
2.718
3.106
2.681 3.055
2.650
3.012
2.624
2.977.
2.947
2.602
2.021
2.896
2.878
2.861
2845
4.317
4.029
3.833
3.600
3.581
3.497
3.428
3.372
3.326
3.286
3.252
3.222
3.197
3.174
3.153
7173
5.893
5.208
4.785
4.501
4.297
4.144
4.025
3.930
3.852
3.787
3.733
0.0005
3.686
3.646
3.610
3.579
3.552
636.619
31.509
12.924
8.610
6.869
5.959
5.408
5.041
4.781
4.587
4.437
4318
4.221
4.140
4.073
4.015
3.965
3.922
3.883
3.850
0
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 1 images
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman