Hypothesis, that is alternative to null hypothesis, is represented as

Correct option is B

The alternative hypothesis (H₁) is the hypothesis that stands in opposition to the null hypothesis (H₀). It represents the claim or effect the researcher expects to find in the study. While the null hypothesis assumes no effect or no difference, the alternative hypothesis proposes the presence of an effect or difference.
Information Booster: 1. Hypotheses in Research: Used to establish a premise for testing scientific queries.
2. Types of Alternative Hypotheses:
· Directional (one-tailed): Specifies a particular direction (e.g., "X increases Y").
· Non-directional (two-tailed): Suggests a difference without a direction (e.g., "X affects Y").
3. Rejection of H₀: If evidence strongly supports H₁, H₀ is rejected.
4. Role of Significance: A commonly used level is 0.05 (5%), beyond which H₀ is rejected.
5. Practical Use: Forms the backbone of inferential statistics in fields like psychology, economics, and healthcare.
6. Errors in Testing:
· Type I Error: Rejecting H₀ when it is true.
· Type II Error: Failing to reject H₀ when H₁ is true.