Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of 130 to 189 cm and weights of 40 to 150 kg. Let the predictor variable be the first variable given. The 100 paired measurements yield x = 167.08 cm, y=81.19 kg, r=0.133, P-value = 0.187, and y= -106 +1.12x. Find the best predicted value of y (weight) given an adult male who is 160 cm tall. Use a 0.05 significance level. Click the icon to view the critical values of the Pearson correlation coefficient r. The best predicted value of y for an adult male who is 160 cm tall is (Round to two decimal places as needed.) kg.
Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of 130 to 189 cm and weights of 40 to 150 kg. Let the predictor variable be the first variable given. The 100 paired measurements yield x = 167.08 cm, y=81.19 kg, r=0.133, P-value = 0.187, and y= -106 +1.12x. Find the best predicted value of y (weight) given an adult male who is 160 cm tall. Use a 0.05 significance level. Click the icon to view the critical values of the Pearson correlation coefficient r. The best predicted value of y for an adult male who is 160 cm tall is (Round to two decimal places as needed.) kg.
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
7
Transcribed Image Text:Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of 130 to 189 cm and weights of 40 to 150 kg. Let the predictor variable x
be the first variable given. The 100 paired measurements yield x = 167.08 cm, y = 81.19 kg, r=0.133, P-value = 0.187, and y= -106 + 1.12x. Find the best predicted value of y
(weight) given an adult male who is 160 cm tall. Use a 0.05 significance level.
Click the icon to view the critical values of the Pearson correlation coefficient r.
The best predicted value of y for an adult male who is 160 cm tall is
(Round to two decimal places as needed.)
kg.
Transcribed Image Text:The best
(Round to
n
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100
n
Critical Values of the Pearson Correlation Coefficient r
α=0.05
0.950
0.878
0.811
0.754
0.707
0.666
0.632
0.602
0.576
0.553
0.532
0.514
0.497
0.482
0.468
0.456
0.444
0.396
0.361
0.335
0.312
0.294
0.279
0.254
0.236
0.220
0.207
0.196
α=0.05
α=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
0.623
0.606
0.590
0.575
0.561
0.505
0.463
0.430
0.402
0.378
0.361
0.330
0.305
0.286
0.269
0.256
α = 0.01
NOTE: To test Ho: p=0
against H₁: p#0, reject Ho
if the absolute value of r is
greater than the critical
value in the table.
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