BIOSTATISTICS

2. The recommended acidity levels for sweet wines is 0.70% and 0.85%. Mr. Santos is a vintner (winemaker) takes random samples from casks that are 15, 20, and 25 years old, respectively, and measures the acidity of each sample. The sample results are given in the table below. At 1% level, test if the mean acidity levels are the same for the three different ages. 1. A study was performed to test three different feed additives on growth promotion. Weight gain of heifers by treatment (pounds per animal per day) was shown in the following table. Determine if there is significant difference among treatment means at 5% level. Replicate Treatment 1 2 3 Total 4 5 6 7 Control (T1) 1.22 1.19 1.18 1.23 1.28 1.14 Feed-1 (T2) 1.34 1.41 1.38 1.32 1.36 1.43 1.37 Feed-2 (T3) 1.45 1.48 1.51 1.4 1.44 Feed-3 (T4) 1.31 1.33 1.28 1.34 1.41 1.27 1.38Multiple comparison of means using Fisher's LSD [If applicable} Treatments Difference = Conclusion ANOVA output Treatments Mean SD