Based on the results from the lab practical, we can analyze the effectiveness of the different plant-derived skincare products in inhibiting bacterial growth. The null hypothesis (H0) proposed that there would be no significant differences in antibacterial effectiveness between the herbal extracts, gentel, and macadamia oil when compared to the negative control (water) and the positive control (Ceftriaxone). However, the F value obtained (16.835) is much higher than the F critical value (3.47805), and the P value (0.00023) is significantly lower than the conventional alpha level of 0.05. This indicates strong evidence against the null hypothesis, leading us to reject it, and accept the alternative hypothesis (H1) instead. This means that at least one of the plant-derived skincare products was significantly more effective at inhibiting bacterial growth compared to water and shows comparable effectiveness to the antibiotic ceftriaxone. In summary, the results suggest that the plant-derived products do have antibacterial properties, as evidenced by the varying zones of inhibition across different products, with the positive control exhibiting the largest zones, confirming that these products could be beneficial in skincare applications aimed at reducing bacterial growth.
Discuss the results Using the information given below with the results from the lab practical, Acknowledge when a hypothesis may be incorrect. Null hypothesis and alternative hypothesis which hypothesis is rejected and which is accepted and state why it rejected and why other accepted. State your explanation in detail in one paragraph in simple English terms.
P1 (Herbal)
0.3 cm
0.3 cm
0.4 cm
P2 ( Gental)
0.6 cm
0.6 cm
0.8 cm
P3 (Macado)
0.4 cm
0.5 cm
0.7 cm
Negative control ( water)
0.5 cm
0.2 cm
0.1 cm
Positive Control ( Ceftriaxone)
1 cm
1 cm
1.1 cm.
F value. 16.835
P value. 0.00023
F critical 3.47805
With a Honest Significant Difference (HSD) 0.04256
Hypothesis
Null Hypothesis (H0): There is no significant difference in the antibacterial effectiveness of the plant-derived skincare products (herbal extracts, gentel, and macadamia oil) compared to the negative control (water) and the positive control (Ceftriaxone) in inhibiting bacterial growth as measured by the zones of inhibition on agar plates.
Alternate Hypothesis (H1): At least one of the plant-derived skincare products (herbal extracts, gentel, or macadamia oil) demonstrates a significantly greater antibacterial effectiveness in inhibiting bacterial growth compared to the negative control (water) and shows comparable or superior effectiveness to the positive control (Ceftriaxone) as measured by the zones of inhibition on agar plates.
1 answer