The data show the chest size and weight of several bears. Find the regression equation, letting chest size be the independent (x) variable. Then find the best predicted weight of a bear with a chest size of 48 inches. Is the result close to the actual weight of 218 pounds? Use a significance level of 0.05. Chest size (inches) Weight (pounds) E Click the icon to view the critical values of the Pearson correlation coefficient r. 58 49 58 43 46 57 355 266 332 177 246 348 What is the regression equation?
The data show the chest size and weight of several bears. Find the regression equation, letting chest size be the independent (x) variable. Then find the best predicted weight of a bear with a chest size of 48 inches. Is the result close to the actual weight of 218 pounds? Use a significance level of 0.05. Chest size (inches) Weight (pounds) E Click the icon to view the critical values of the Pearson correlation coefficient r. 58 49 58 43 46 57 355 266 332 177 246 348 What is the regression equation?
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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Transcribed Image Text:The data show the chest size and weight of several bears. Find the regression equation, letting chest size be the independent (x) variable. Then find the best predicted weight of a bear with a chest size of 48 inches. Is the result
close to the actual weight of 218 pounds? Use a significance level of 0.05.
Chest size (inches)
Weight (pounds)
(= Click the icon to view the critical values of the Pearson correlation coefficient r.
49
355
266
58
58
57
46
348
43
332
177
246
What is the regression equation?
y =+x (Round to one decimal place as needed.)
What is the best predicted weight of a bear with a chest size of 48 inches?
The best predicted weight for a bear with a chest size of 48 inches is
pounds.
(Round to one decimal place as needed.)
Is the result close to the actual weight of 218 pounds?
O A. This result is close to the actual weight of the bear.
O B. This result is exactly the same as the actual weight of the bear.
O C. This result is not very close to the actual weight of the bear.
O D. This result is very close to the actual weight of the bear.
Transcribed Image Text:Critical Values of the Pearson Correlation Coefficient r
NOTE: To test H,: p=0
Jagainst H,: p#0, reject H,
if the absolute value of r is
Igreater than the critical
value in the table.
a = 0.05
a = 0.01
4
0.950
0.990
0.878
0.959
0.811
0.917
7
0.754
0.875
8
0.707
0.834
0.666
0.798
10
0.632
0.765
11
0.602
0.735
12
0.576
0.708
13
0.553
0.684
14
0.532
0.661
15
0.514
0.641
16
0.497
0.623
0.606
17
0.482
18
0.468
0.590
19
0.456
0.575
20
0.444
0.561
25
0.396
0.505
30
0.361
0.463
35
0.335
0.430
40
0.312
0.402
45
0.294
0.378
50
0.279
0.361
60
0.254
0.330
70
0.236
0.305
80
0.220
0.286
90
0.207
0.269
100
0.196
0.256
a = 0.05
a = 0.01
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