Large (28.5-36.5 cm) Replicate 1 Medium (24.5 – 28.4 cm) Replicate 1 Small (12.5 – 24.4 cm) Replicate 1 Large (28.5-36.5 cm) Replicate 2 Medium (24.5 –- 28.4 cm) Replicate 2 Small (12.5 – 24.4 cm)...

Accumulation of mercury (Hg) in fish is hypothesized to correlate with the fish size.
Barbonymus schwanenfeldii
is a species commonly found in a dam in Sarawak. Table 1 shows data of Hg concentration (mg/kg) present in three sizes of fish caught in the dam in triplicates.

(i, ii, iii was already answered.)

Extracted text: Large (28.5-36.5 cm) Replicate 1 Medium (24.5 – 28.4 cm) Replicate 1 Small (12.5 – 24.4 cm) Replicate 1 Large (28.5-36.5 cm) Replicate 2 Medium (24.5 –- 28.4 cm) Replicate 2 Small (12.5 – 24.4 cm) Replicate 2 Large (28.5-36.5 cm) Replicate 3 Medium (24.5 – 28.4 cm) Replicate 3 Small (12.5 – 24.4 cm) Replicate 3 5.05 mg/kg 8.26 mg/kg 3.17 mg/kg 4.37 mg/kg 6.17 mg/kg 3.00 mg/kg 5.72 mg/kg 9.49 mg/kg 3.44 mg/kg i. Organize the data into a table according to groups and replicates. Calculate the mean and standard deviation of Hg concentration in three different sizes of Barbonvmus schwanenfeldii. You are allowed to use Microsoft ii. Excel. Use Microsoft Excel to plot a bar graph to illustrate the mean concentration of Hg in three different sizes of Barbonymus schwanenfeldii. You must label the axis and include the standard deviation to your graph. iii. Identify whether there is any significant different at 5% significance level in the concentrations of Hg in three different sizes of fish. If there is a significant, identify the groups with significant difference. Show your calculation including the hypothesis, decision and conclusion. iv.