Inferential statistics| PYQs| Sample Questions| P11| CBSE Class 12 Applied Maths| 2022-23

Topic
Inferential statistics
Chapter 5
Previous Year Board Questions
Questions from Sample Papers
Revision for 2022-23 Board Exam
CBSE Class 12 Applied Mathematics
Videos on
How to find a square root of a number:
• Finding the square roo...
CBSE Sample papers - Applied Mathematics
• Sample paper | CBSE Cl...
Solution to exercises from CBSE Handbook
• CBSE Applied Maths Han...
Unit-wise playlist
Unit 1 - Numbers, Quantification, and Numerical Applications
• CBSE Class 12 Applied ...
Unit 2 - Algebra
• CBSE Class 12 Applied ...
Unit 3 - Calculus
Differentiation and its applications
• CBSE Class 12 Applied ...
Integration and its applications
• CBSE Class 12 Applied ...
Differential equations and modeling
• CBSE Class 12 Applied ...
Unit 4 - Probability distributions
• CBSE Class 12 Applied ...
Unit 5: Inferential statistics, Chapter 21, Solution to Exercise from Applied Mathematics by R. D. Sharma and CBSE Handbook
• CBSE Class 12 Applied ...
Unit 6: Time-Based Data, CBSE Handbook, and additional exercises
• CBSE Class 12 Applied ...
Unit 7: Financial Mathematics, CBSE Handbook
• CBSE Class 12 Applied ...
Unit 8: Linear Programming Problem, CBSE Handbook, and Additional Exercises
• CBSE Class 12 Applied ... ************************************************
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[@meghamuralidharan2078]

Ma'am if nothing is mentioned for the 2 sample t-test, do we just assume that variances are equal, and carry forth with the respective formula?

[@AnsEducationalHub]

There is a separate method to test whether variances are equal or not. But it is not included in our syllabus. As a rule of thumb, we check higher sample standard deviation divided by smaller sample standard deviation. If this ratio is less than 2, we assume population variances are equal. If it's more than 2, assume population variances are unequal.

[@thecapshow1704]

mam in these questions values of t are given wrong acc to the question?

[@AnsEducationalHub]

All values are correct. Please check properly. All are two-tailed test. So check for area under Two tails.