Hypothesis Testing
ICSE · Class 12 · Artificial Intelligence
Practice quiz for Hypothesis Testing — ICSE Class 12 Artificial Intelligence. MCQs and questions with answers to test your preparation.
Interactive on Super Tutor
Studying Hypothesis Testing? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for practice quiz and more.
1,000+ Class 12 students started this chapter today
Quick Quiz: Hypothesis Testing
0/4Tap an answer to check it instantly. No sign-up needed for these 4.
For a hypothesis test, sample data show that the mean daily app time after an update is 52 minutes, while the historical average is 45 minutes. Which hypothesis best states the status quo before testing?
A statistical test rejects a true null hypothesis. If the situation is like classifying a legitimate email as spam, what kind of error is this?
A new AI recommendation model is actually useful, but an experiment fails to show its superiority and it is discarded. Which error and consequence are described?
A correct interpretation of a correlation coefficient says r = 0.8. What does this suggest about the relationship between two variables?
Sample Questions
A company wants to test whether a new AI model improves user engagement. Historical average daily app time is 45 minutes, and the claimed improvement is that the average daily time becomes greater than 45 minutes. Which statements are part of the full hypothesis pair?
Show answer
Null hypothesis: average daily time is 45 minutes or less, Alternative hypothesis: average daily time is greater than 45 minutes
The null hypothesis states no beneficial effect or no improvement. The alternative hypothesis is the claim that the update worked and increased the average daily time above the historical value.
A fraud detection system fails to detect a fraudulent transaction, although the null hypothesis is false. Which outcomes match this situation?
Show answer
Type II error, False negative
Failing to reject a false null hypothesis is a Type II error, also called a false negative. It means the system misses a real effect or real fraud.
A company launches a new AI model after a test incorrectly shows improvement, but the model is not actually better. Which pair is correct?
Show answer
Type I error, False positive
Rejecting a true null hypothesis is a Type I error, and it is also called a false positive. The company wrongly thinks the model is better.
A data set has correlation coefficient r = -0.2. Which statements are correct?
Show answer
The relationship is weak and negative, The value lies within the range -1 to +1
A value of -0.2 suggests a weak negative linear relationship. Any correlation coefficient r lies between -1 and +1.
+112 more questions available
Practice AllFrequently Asked Questions
What are the important topics in Hypothesis Testing for ICSE Class 12 Artificial Intelligence?
How to score full marks in Hypothesis Testing — ICSE Class 12 Artificial Intelligence?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Hypothesis Testing
Important Questions
Practice with board exam-style questions
Revision Notes
Key points for last-minute revision
Formula Sheet
All formulas in one place
Chapter Summary
Understand the chapter at a glance
Concept Maps
See how topics connect visually
Study Plan
Step-by-step plan to ace this chapter
Flashcards
Quick-fire cards for active recall
Syllabus
What topics to cover
NCERT Solutions
Every textbook question solved step by step
For serious students
Get the full Hypothesis Testing chapter — for free.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for ICSE Class 12 Artificial Intelligence.