In this lab practical, we tested the effectiveness of plant-derived skincare products against bacterial growth and formulated two hypotheses. The null hypothesis (H0) stated that there would be no significant difference in the antibacterial effectiveness of these products compared to a negative control (water) and a positive control (Ceftriaxone). The alternative hypothesis (H1) suggested that at least one of the skincare products would show greater antibacterial effectiveness than the negative control and be as effective as or more effective than the positive control. Given the results, with an F value of 16.835, a P value of 0.00023, and an F critical value of 3.47805, we can reject the null hypothesis because the P value is much lower than the standard threshold of 0.05, indicating a significant difference in antibacterial effectiveness. This means that at least one of the plant-derived products was significantly better at inhibiting bacterial growth than water. Consequently, we accept the alternative hypothesis (H1) as it is supported by these strong statistical results, which show that the plant extracts not only differ significantly from the negative control but also potentially rival the effectiveness of the positive control, Ceftriaxone.
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.
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.
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