df= Critical t values 35 2.724 2.438 2.030 1.690 1.306 35 36 2.719 2.434 2.028 1.688 1.306 36 Two tails 37 2.715 2.431 2.026 1.687 1.305 37 38 2.712 2.429 2.024 1.686 1.304 38 39 2.708 2.426 2.023 1.685 1.304 39 40 2.704 2.423 2.021 1.684 1.303 40 45 2.690 2.412 2.014 1.679 1.301 45 50 2.678 2.403 2.009 1.676 1.299 50 alues 60 2.660 2.390 2.000 1.671 1.296 60 70 2.648 2.381 1.994 1.667 1.294 70 a/2 a/2 80 2.639 2.374 1.990 1.664 1.292 80 90 2.632 2.368 1.987 1.662 1.291 90 100 2.626 2.364 1.984 1.660 1.290 100 200 2.601 2.345 1.972 1.653 1.286 200 Critical t value (negative) Critical t value 300 2.592 2.339 1.968 1.650 1.284 300 (positive) 400 2.588 2.336 1.966 1.649 1.284 400 500 2.586 2.334 1.965 1.648 1.283 500 1000 2.581 2.330 1.962 1.646 1.282 1000 2000 2.578 2.328 1.961 1.646 1.282 2000 Large 2.576 2.326 1.960 1.645 1.282 Large 03:10 Area in One Tail 0.005 0.01 0.025 0.05 0.10 Degrees of Area in Two Tails Degrees of Freedom 0.01 0.02 0.05 0.10 0.20 Freedom Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. Click the icon to view at distribution table. Tinterval (13.046,22.15) x=17.598 Sx=16.01712719 n=50 a. What is the number of degrees of freedom that should be used for finding the critical value ta/2? df= (Type a whole number.) b. Find the critical value ta/2 corresponding to a 95% confidence level. La/2=0 (Round to two decimal places as needed.) c. Give a brief general description of the number of degrees of freedom. OA. The number of degrees of freedom for a collection of sample data is the total number of sample values. OB. The number of degrees of freedom for a collection of sample data is the number of sample values that can vary after certain restrictions have been imposed on all data values. OC. The number of degrees of freedom for a collection of sample data is the number of unique, non-repeated sample values. OD. The number of degrees of freedom for a collection of sample data is the number of sample values that are determined after certain restrictions have been imposed on all data values.
df= Critical t values 35 2.724 2.438 2.030 1.690 1.306 35 36 2.719 2.434 2.028 1.688 1.306 36 Two tails 37 2.715 2.431 2.026 1.687 1.305 37 38 2.712 2.429 2.024 1.686 1.304 38 39 2.708 2.426 2.023 1.685 1.304 39 40 2.704 2.423 2.021 1.684 1.303 40 45 2.690 2.412 2.014 1.679 1.301 45 50 2.678 2.403 2.009 1.676 1.299 50 alues 60 2.660 2.390 2.000 1.671 1.296 60 70 2.648 2.381 1.994 1.667 1.294 70 a/2 a/2 80 2.639 2.374 1.990 1.664 1.292 80 90 2.632 2.368 1.987 1.662 1.291 90 100 2.626 2.364 1.984 1.660 1.290 100 200 2.601 2.345 1.972 1.653 1.286 200 Critical t value (negative) Critical t value 300 2.592 2.339 1.968 1.650 1.284 300 (positive) 400 2.588 2.336 1.966 1.649 1.284 400 500 2.586 2.334 1.965 1.648 1.283 500 1000 2.581 2.330 1.962 1.646 1.282 1000 2000 2.578 2.328 1.961 1.646 1.282 2000 Large 2.576 2.326 1.960 1.645 1.282 Large 03:10 Area in One Tail 0.005 0.01 0.025 0.05 0.10 Degrees of Area in Two Tails Degrees of Freedom 0.01 0.02 0.05 0.10 0.20 Freedom Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. Click the icon to view at distribution table. Tinterval (13.046,22.15) x=17.598 Sx=16.01712719 n=50 a. What is the number of degrees of freedom that should be used for finding the critical value ta/2? df= (Type a whole number.) b. Find the critical value ta/2 corresponding to a 95% confidence level. La/2=0 (Round to two decimal places as needed.) c. Give a brief general description of the number of degrees of freedom. OA. The number of degrees of freedom for a collection of sample data is the total number of sample values. OB. The number of degrees of freedom for a collection of sample data is the number of sample values that can vary after certain restrictions have been imposed on all data values. OC. The number of degrees of freedom for a collection of sample data is the number of unique, non-repeated sample values. OD. The number of degrees of freedom for a collection of sample data is the number of sample values that are determined after certain restrictions have been imposed on all data values.
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter4: Polynomial And Rational Functions
Section4.6: Rational Functions
Problem 11SC: Find the mean hourly cost when the cell phone described above is used for 240 minutes.
Related questions
Question
Transcribed Image Text:df=
Critical t values
35
2.724
2.438
2.030
1.690
1.306
35
36
2.719
2.434
2.028
1.688
1.306
36
Two tails
37
2.715
2.431
2.026
1.687
1.305
37
38
2.712
2.429
2.024
1.686
1.304
38
39
2.708
2.426
2.023
1.685
1.304
39
40
2.704
2.423
2.021
1.684
1.303
40
45
2.690
2.412
2.014
1.679
1.301
45
50
2.678
2.403
2.009
1.676
1.299
50
alues
60
2.660
2.390
2.000
1.671
1.296
60
70
2.648
2.381
1.994
1.667
1.294
70
a/2
a/2
80
2.639
2.374
1.990
1.664
1.292
80
90
2.632
2.368
1.987
1.662
1.291
90
100
2.626
2.364
1.984
1.660
1.290
100
200
2.601
2.345
1.972
1.653
1.286
200
Critical t value
(negative)
Critical t value
300
2.592
2.339
1.968
1.650
1.284
300
(positive)
400
2.588
2.336
1.966
1.649
1.284
400
500
2.586
2.334
1.965
1.648
1.283
500
1000
2.581
2.330
1.962
1.646
1.282
1000
2000
2.578
2.328
1.961
1.646
1.282
2000
Large
2.576
2.326
1.960
1.645
1.282
Large
03:10
Area in One Tail
0.005
0.01
0.025
0.05
0.10
Degrees of
Area in Two Tails
Degrees of
Freedom
0.01
0.02
0.05
0.10
0.20
Freedom
Transcribed Image Text:Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below.
Click the icon to view at distribution table.
Tinterval
(13.046,22.15)
x=17.598
Sx=16.01712719
n=50
a. What is the number of degrees of freedom that should be used for finding the critical value ta/2?
df=
(Type a whole number.)
b. Find the critical value ta/2 corresponding to a 95% confidence level.
La/2=0
(Round to two decimal places as needed.)
c. Give a brief general description of the number of degrees of freedom.
OA. The number of degrees of freedom for a collection of sample data is the total number of sample values.
OB. The number of degrees of freedom for a collection of sample data is the number of sample values that can vary after certain restrictions have been imposed on all data values.
OC. The number of degrees of freedom for a collection of sample data is the number of unique, non-repeated sample values.
OD. The number of degrees of freedom for a collection of sample data is the number of sample values that are determined after certain restrictions have been imposed on all data values.
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 2 steps with 1 images
Recommended textbooks for you
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Algebra: Structure And Method, Book 1
Algebra
ISBN:
9780395977224
Author:
Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:
McDougal Littell
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage