Environmental Science- ICAR JRF/SRF 2024

• Red Bag/Container: According to the Bio-Medical Waste Management Rules, 2016 (Schedule I), red-colored containers/bags are designated for contaminated recyclable plastic waste, including disposable syringes without needles, IV bottles, tubing, catheters, and urine bags.
• Other Waste Categories: White translucent containers hold sharps/needles; yellow bags hold anatomical and soiled waste; blue boxes hold glassware and metallic implants.

Correct option: (1) Red

• Latin Square Design (LSD) Degrees of Freedom: For an $m \times m$ Latin Square with $m$ treatments:

$$\text{Total df} = m^2 - 1$$ $$\text{Row df} = m - 1, \quad \text{Column df} = m - 1, \quad \text{Treatment df} = m - 1$$ $$\text{Error df} = (m - 1)(m - 2)$$

• Calculation for $m = 6$:

$$\text{Error df} = (6 - 1) \times (6 - 2) = 5 \times 4 = 20$$

Correct option: (4) 20

• Type I Error ($\alpha$): Occurs when a true null hypothesis ($H_0$) is incorrectly rejected.
• Level of Significance: The probability of committing a Type I error is denoted by $\alpha$ and represents the level of significance of the statistical test ($\alpha = P(\text{Reject } H_0 \mid H_0 \text{ is true})$), typically set at 0.05 or 0.01.

Correct option: (4) Level of significance