Allowance in peso (x) (y) xy 88 10,560 120 14,400 90 13,500 7,744 150 22,500 85 8,500 8,100 100 10,000 87 10,440 7,225 120 14,400 92 7,360 7,569 80 6,400 85 8,500 8,464 100 10,000 89 13,350 7,225 150 22,500 Σν-616 Exy 72,210 7,921 Cr%=820 Ex =100,200 Ey = 54,248 n(Exy)-(E*)-(Ev) n(Ex*)-(E*)' •/"(Ey)-(Ex} Interpretation: othesis testing: H H: Use test with a = and df=. 3 Tab %3D n-2 1-r T =. Decision: Conclusion: CORRELATION

Allowance in peso (x) (y) xy 88 10,560 120 14,400 90 13,500 7,744 150 22,500 85 8,500 8,100 100 10,000 87 10,440 7,225 120 14,400 92 7,360 7,569 80 6,400 85 8,500 8,464 100 10,000 89 13,350 7,225 150 22,500 Σν-616 Exy 72,210 7,921 Cr%=820 Ex =100,200 Ey = 54,248 n(Exy)-(E)-(Ev) n(Ex)-(E*)' •/"(Ey)-(Ex} Interpretation: othesis testing: H H: Use test with a = and df=. 3 Tab %3D n-2 1-r T =. Decision: Conclusion: CORRELATION

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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Concept explainers

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.

Question

Please answer step 1-5. Gladly appreciate it.

Thank you in advance

Step 4 Computed value of
7-2
T 0.47
1-(0.47)
-0.47
0.78
0.47/6.41
- 0.47(2.53)
1.19.
Step 5
Since T <T, then we do not reject H,
tab
Conclusion: There is no correlation between the grades in Math and in English
Check Your Progress
Determine if there is correlation between the daily allowance of students and their me
grade in all of their subjects using the data below. Use Pearson's r product moment
correlation. Then, test the hypothesis whether there is a significant correlation or not
Use a =5%.
adi wode anite elerbog
orliogvd
Allowance in pesos (x)
Average Grade (y)
120
88
150
90
100
85
120
87
80
92
100
85
150
89
oriw.
16 70
Tol sldst Jast-1 odt
TAAC
CORRELATION AND REGRESSION

table for the needed values is already provided below.
Average Grade
(y)
able
Allowance
in peso (x)
xy
88
10,560
120
14,400
90
13,500
150
7,744
85
22,500
8,500
8,100
100
10,000
87
10,440
7,225
120
14,400
92
7,360
7,569
80
6,400
85
8,500
8,464
100
10,000
89
13,350
7,225
150
22,500
Σν-616
Exy =72,210
7,921
Ex=820
Ex² =100,200
Ey =54,248
English.
%3D
n(Exy)-(E*)-(Ey)
Vn(E*)-(E*)* • /n(Ev°)-(E*}
ir mean
nt
not.
Interpretation:
Hypothesis testing:
Step 1 H
H:
2as sho
Step 2 Use
test with a =
and df =
Step 3 T
%3D
tab
Step 4 T
n-2
1-r?
00
T =
%3D
Step 5 Decision:
Conclusion:
CORRELATION
231

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