Question

 Chi-square test and McNemar’s test.

19 Jan 2026
Answer :
Word Count : 62
BasisChi-square TestMcNemar’s Test
Type of testNon-parametric testNon-parametric test
Data structureUnpaired or independent ___ _______ _______ _____ _______ ______ ___ ___ _______.
________ __________ ________ __________ __________ _________ _________.
___ ____ __________ ___ ________ ______ ____ __________ _______ ______ _____.
__________ _________ __________ _____ _____ ______ _____.
_________ ______ _______ ___ __________ ____.
________ __________ ______ ____ __________ ____ _________ _____ ______.
____ ______ ____.
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Explain the Kaplan and Meier method of estimation with an example.

 To study the relationship between age (in years) and cholesterol level (in mg/dL) of two groups of patients, the following data were recorded:

Group 1

Age (years) 46 52 39 65 54 49 76 71
Cholesterol  185 218 182 220 224 193 232 228

Group 2

Age (years) 20 33 78 51 43 44 63
Cholesterol  180 238 275 244 242 268 260

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(ii) Obtain the regression models for each group separately.

(iii) Test the significance of the fitted model at 5% level of significance.

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S. No.  


xi​
 

  


yi​
 

  


ni​
 
1 5 24 60
2 10 18 48
3 15 12 40
4 20 20 80
5 25 26 104

(i) Fit a logistic model considering initial values of equation and equation up to only one iteration.

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None 89 5 16 2 4
Mild 36 3 15 6 2
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Extreme 4 1 16 23 50

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