Is there a linear correlation between x and y? Use α = 0.01. a.) Yes, because the correlation coefficient is not in the critical region. b.) Yes, because the correlation coefficient is in the critical region. c.) No, because the correlation coefficient is in the critical region. d.) No, because the correlation coefficient is not in the critical region. C. What is correlation coefficient when the point (2,9) is excluded? r=_________ (Round to three decimal places as needed.) Is there a linear correlation between x and y? Use
Is there a linear correlation between x and y? Use α = 0.01. a.) Yes, because the correlation coefficient is not in the critical region. b.) Yes, because the correlation coefficient is in the critical region. c.) No, because the correlation coefficient is in the critical region. d.) No, because the correlation coefficient is not in the critical region. C. What is correlation coefficient when the point (2,9) is excluded? r=_________ (Round to three decimal places as needed.) Is there a linear correlation between x and y? Use
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter4: Writing Linear Equations
Section: Chapter Questions
Problem 11CT
Related questions
Question
Is there a
a.) Yes, because the
b.) Yes, because the correlation coefficient is in the critical region.
c.) No, because the correlation coefficient is in the critical region.
d.) No, because the correlation coefficient is not in the critical region.
C. What is correlation coefficient when the point (2,9) is excluded?
r=_________ (Round to three decimal places as needed.)
Is there a linear correlation between x and y? Use α= 0.01
a.) No, because the correlation coefficient is in the critical region.
b.) Yes, because the correlation coefficient is not in the critical region.
c.) Yes, because the correlation coefficient is in the critical region.
d.) No, because the correlation coefficient is not in the critical region.
Transcribed Image Text:Refer to the accompanying scatterplot. a. Examine the pattern of all 10 points and subjectively determine whether there appears to be a
strong correlation between x and y. b. Find the value of the correlation coefficient r and determine whether there is a linear correlation. c.
Remove the point with coordinates (2,9) and find the correlation coefficient r and determine whether there is a linear correlation. d. What do
you conclude about the possible effect from a single pair of values?
Click here to view a table of critical values for the correlation coefficient.
a. Do the data points appear to have a strong linear correlation?
Yes
No
b. What is the value of the correlation coefficient for all 10 data points?
r= (Simplify your answer. Round to three decimal places as needed.)
G
Ay
10
Transcribed Image Text:n
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
30 5 30 35
20
25
40
45
50
60
70
80
90
100
a = .05
950
.878
.811
.754
.707
666
632
.602
576
553
532
514
497
482
468
456
444
396
361
335
312
294
279
254
236
220
207
196
« = .01
.990
.959
.917
.875
.834
.798
.765
.735
.708
.684
.661
.641
.623
.606
.590
.575
.561
.505
463
.430
402
.378
.361
.330
.305
.286
269
.256
NOTE: To test Ho: p = 0 against H; p = 0,
reject Ho if the absolute value of ris
greater than the critical value in the table.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
Recommended textbooks for you
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
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
Functions and Change: A Modeling Approach to Coll…
Algebra
ISBN:
9781337111348
Author:
Bruce Crauder, Benny Evans, Alan Noell
Publisher:
Cengage Learning