MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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PLZ HELP ASAP 2! Need crit value as well!
The accompanying table shows eleven altitudes (in thousands of feet) and the speeds of sound (in feet per second) at these altitudes. Complete parts (a) through (d) below.
Click here to view the data table. Click here to view the table of critical values for the Pearson correlation coefficient.
(a) Display the data in a scatter plot. Choose the correct graph below.
O A.
1140
940+
-5
55
Altitude (1000's ft)
Q
(b) Calculate the sample correlation coefficient r.
There is
O B.
А
55-
-5-
940
1140
Altitude (1000's ft)
Interpret the correlation. Choose the correct answer below.
Q
Q
G
r=
(Round to three decimal places as needed.)
(c) Describe the type of correlation, if any, and interpret the correlation in the context of the data.
linear correlation.
..
O C.
55-
940
1140
Altitude (1000's ft)
O A. Based on the correlation, there does not appear to be any relationship between altitude and speed of sound.
OB. As altitude increases, speeds of sound tend to increase.
OC. Higher altitudes cause decreases in speeds of sound.
O D. Based on the correlation, there does not appear to be a linear relationship between altitude and speed of sound.
OE. As altitude increases. speeds of sound tend to decrease.
Q
Q
O D.
1140
940+
-5
55
Altitude (1000's ft)
Q
Q
G
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Transcribed Image Text:The accompanying table shows eleven altitudes (in thousands of feet) and the speeds of sound (in feet per second) at these altitudes. Complete parts (a) through (d) below. Click here to view the data table. Click here to view the table of critical values for the Pearson correlation coefficient. (a) Display the data in a scatter plot. Choose the correct graph below. O A. 1140 940+ -5 55 Altitude (1000's ft) Q (b) Calculate the sample correlation coefficient r. There is O B. А 55- -5- 940 1140 Altitude (1000's ft) Interpret the correlation. Choose the correct answer below. Q Q G r= (Round to three decimal places as needed.) (c) Describe the type of correlation, if any, and interpret the correlation in the context of the data. linear correlation. .. O C. 55- 940 1140 Altitude (1000's ft) O A. Based on the correlation, there does not appear to be any relationship between altitude and speed of sound. OB. As altitude increases, speeds of sound tend to increase. OC. Higher altitudes cause decreases in speeds of sound. O D. Based on the correlation, there does not appear to be a linear relationship between altitude and speed of sound. OE. As altitude increases. speeds of sound tend to decrease. Q Q O D. 1140 940+ -5 55 Altitude (1000's ft) Q Q G
Data Table
Altitude, x
0
5
10
15
20
25
30
35
40
45
50
Speed of sound, y
1115.3
1097.1
1075.6
1056.3
1035.4
1014.9
996.9
969.3
967.9
967.9
967.9
4
-
expand button
Transcribed Image Text:Data Table Altitude, x 0 5 10 15 20 25 30 35 40 45 50 Speed of sound, y 1115.3 1097.1 1075.6 1056.3 1035.4 1014.9 996.9 969.3 967.9 967.9 967.9 4 -
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