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 538 pounds? Use a significance I Chest size (inches) Weight (pounds) 36 6 39 49 42 O 50 | 296 570 501 353 487 385 9 Click the icon to view the critical values of the Pearson correlation coefficient r. 56 O Critical Values of the Pearson Correlation Coefficient r What is the regression equation? Critical Values of the Pearson Correlation Coefficient r a-0.05 0.950 0878 0811 0.754 0.707 0 666 0.632 0.602 0.576 0 553 0.532 0514 0497 0.482 0.468 0.456 0.444 0396 0.361 0335 0312 0 294 0 279 0 254 0 236 0220 0 207 0.196 NOTE: To test Hp=0 against H, p#0, reject H, jf the absolute value of r is greater than the critical value in the table. =O•O« (Round to one decimal place as needed) a-0.01 0.990 0.959 0.917 0.875 0.834 0.798 0.765 0.735 0.708 0.684 0.661 0.641 0623 0.606 0.590 0 575 0.561 0.505 0.463 0.430 0.402 0 378 4 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.) s the result close to the actual weight of 538 pounds? 10 11 O A. This result is exactly the same as the actual weight of the bear. O B. This result is very close to the actual weight of the bear. OC. This result is not very close to the actual weight of the bear. O D. This result is close to the actual weight of the bear. 12 13 14 15 16 17 18 19 20 25 30 35 40 45 50 60 70 80 90 100 0.361 0 330 0.305 0 286 0 269 0 256 a-0.05 a-0.01
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 538 pounds? Use a significance I Chest size (inches) Weight (pounds) 36 6 39 49 42 O 50 | 296 570 501 353 487 385 9 Click the icon to view the critical values of the Pearson correlation coefficient r. 56 O Critical Values of the Pearson Correlation Coefficient r What is the regression equation? Critical Values of the Pearson Correlation Coefficient r a-0.05 0.950 0878 0811 0.754 0.707 0 666 0.632 0.602 0.576 0 553 0.532 0514 0497 0.482 0.468 0.456 0.444 0396 0.361 0335 0312 0 294 0 279 0 254 0 236 0220 0 207 0.196 NOTE: To test Hp=0 against H, p#0, reject H, jf the absolute value of r is greater than the critical value in the table. =O•O« (Round to one decimal place as needed) a-0.01 0.990 0.959 0.917 0.875 0.834 0.798 0.765 0.735 0.708 0.684 0.661 0.641 0623 0.606 0.590 0 575 0.561 0.505 0.463 0.430 0.402 0 378 4 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.) s the result close to the actual weight of 538 pounds? 10 11 O A. This result is exactly the same as the actual weight of the bear. O B. This result is very close to the actual weight of the bear. OC. This result is not very close to the actual weight of the bear. O D. This result is close to the actual weight of the bear. 12 13 14 15 16 17 18 19 20 25 30 35 40 45 50 60 70 80 90 100 0.361 0 330 0.305 0 286 0 269 0 256 a-0.05 a-0.01
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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
538
pounds? Use a significance level of 0.05.
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 538 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.
56
36
570
50
39
49
487
42 D
296
501
353
385
Critical Values of the Pearson Correlation Coefficient r
What is the regression equation?
Critical Values of the Pearson Correlation Coefficient r
y =+Nx (Round to one decimal place as needed.)
a = 0.01
0.990
NOTE: To test H,: p= 0
Jagainst H,: p#0, reject H,
if the absolute value of r is
greater than the critical
value in the table.
n
a = 0.05
4
0.950
What is the best predicted weight of a bear with a chest size of 48 inches?
5
0.878
0.959
0.917
0.875
6.
0.811
0.754
0.707
0.666
0.632
0.602
The best predicted weight for a bear with a chest size of 48 inches is
pounds.
7
(Round to one decimal place as needed.)
8
0.834
Is the result close to the actual weight of 538 pounds?
0.798
0.765
10
O A. This result is exactly the same as the actual weight of the bear.
O B. This result is very close to the actual weight of the bear.
OC. This result is not very close to the actual weight of the bear.
11
12
13
0.735
0.708
0.684
0.661
0.641
0.576
0.553
0.532
0.514
0.497
0.482
0.468
0.456
14
15
0.623
0.606
0.590
O D. This result is close to the actual weight of the bear.
16
17
18
19
0.575
20
25
30
35
0.444
0.561
0.396
0.505
0.361
0.463
0.335
0.430
0.402
40
45
50
60
70
80
0.312
0.294
0.279
0.254
0.236
0.220
0.207
0.196
0.378
0.361
0.330
0.305
0.286
90
0.269
100
0.256
a = 0.05
a = 0.01
n
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