Please keep at least four decimal places!
1 A farm animal feed company is developing a new line of pig feed. It has created four different formulations and is interested in knowing which pig feed is most efficient at fattening them up. 12 pigs from 3 different litters (A, B and C) were selected, 3 pigs from each litter were exclusively fed one type of feed (1, 2, 3 or 4). After 2 years each pig was weighed. Litters were used as blocking effect to control for the possiblility of genetics playing a role in size. The total standard deviation of dataset was 2.17. Interactions were found to be not significant. A summary of the cell and column means is given below. Feed 2 Litter A 103.4012 103.56 105.50 Litter B 106.902 107.44 109.34 Litter 104.06 105.23104.41 106.53 Column Mean 104.79 106.80 105.14 107.12 Note that two of the cell means are not given on purpose, however the following partial ANOVA table is supplied. Source DF SSMS Feed Type Litter 52.740 Error Total Calculate the total degrees of freedom [1 pt(s)] Incorrect. Tries 1/1 Previous Tries Calculate the error degrees of freedom 30 (1 pt(s)] You are correct. Your receipt no. is 159-8400. Previous Tries Calculate the degrees of freedom for the blocking factor 2 [1 pt(s)] You are correct. Previous Tries Your receipt no. Is 159-5277. Calculate the degrees of freedom for the feed type 3 [1 pt(s)] You are correct. Previous Tries Your receipt no. is 159-6405 Calculate the sum of Squares for the Feed Type [1 pt(s)] Submit Answer Incorrect. Tries 2/3 Previous Tries Calculate the Sum of Squares for the litter 105.4800 [1 pt(s)] You are correct. Your receipt no. is 159-3941 Previous Tries Calculate the Sum of Squares of the Error [1 pt(s)] Submit Answer Incorrect. Tries 1/3 Previous Tries Calculate the Mean Square for the Feed Type [1 pt(s)] Submit Answer Tries 0/3 Calculate the MSE [1 pt(s)] Submit Answer Tries 0/3 Calculate the F statistic for Feed Type (1 pt(s)] Submit Answer Tries 0/3 Is there a significant feed effect at a = $alpha? . Yes there is a significant effect . No there is not a significant effect [1 pt(s)] Submit Answer Tries 0/1 Calculate the F statistic for litter (1 pt(s)] Submit Answer Tries 0/3 Is there a significant litter effect at a = $alpha? . Yes there is a significant effect . No there is not a significant effect [1 pt(s)] Submit Answer Tries 0/1 The feed company is interested in knowing which of the feed types is effective. How many pairwise comparisons must be made? [1 pt(s)] Submit Answer Tries 0/3 If a = $alpha, what is the value of a* ? [1 pt(s)] Submit Answer Tries 0/3 What is the denominator of the pairwise test statistics for the feed type? [1 pt(s)] Submit Answer Tries 0/3 What is the test statistic for feed type 1 vs. 4? (1 pt(s)] Submit Answer Tries 0/3 What is the test statistic for feed type 2 vs. 3? [1 pt(s)] 1 A farm animal feed company is developing a new line of pig feed. It has created four different formulations and is interested in knowing which pig feed is most efficient at fattening them up. 12 pigs from 3 different litters (A, B and C) were selected, 3 pigs from each litter were exclusively fed one type of feed (1, 2, 3 or 4). After 2 years each pig was weighed. Litters were used as blocking effect to control for the possiblility of genetics playing a role in size. The total standard deviation of dataset was 2.17. Interactions were found to be not significant. A summary of the cell and column means is given below. Feed 2 Litter A 103.4012 103.56 105.50 Litter B 106.902 107.44 109.34 Litter 104.06 105.23104.41 106.53 Column Mean 104.79 106.80 105.14 107.12 Note that two of the cell means are not given on purpose, however the following partial ANOVA table is supplied. Source DF SSMS Feed Type Litter 52.740 Error Total Calculate the total degrees of freedom [1 pt(s)] Incorrect. Tries 1/1 Previous Tries Calculate the error degrees of freedom 30 (1 pt(s)] You are correct. Your receipt no. is 159-8400. Previous Tries Calculate the degrees of freedom for the blocking factor 2 [1 pt(s)] You are correct. Previous Tries Your receipt no. Is 159-5277. Calculate the degrees of freedom for the feed type 3 [1 pt(s)] You are correct. Previous Tries Your receipt no. is 159-6405 Calculate the sum of Squares for the Feed Type [1 pt(s)] Submit Answer Incorrect. Tries 2/3 Previous Tries Calculate the Sum of Squares for the litter 105.4800 [1 pt(s)] You are correct. Your receipt no. is 159-3941 Previous Tries Calculate the Sum of Squares of the Error [1 pt(s)] Submit Answer Incorrect. Tries 1/3 Previous Tries Calculate the Mean Square for the Feed Type [1 pt(s)] Submit Answer Tries 0/3 Calculate the MSE [1 pt(s)] Submit Answer Tries 0/3 Calculate the F statistic for Feed Type (1 pt(s)] Submit Answer Tries 0/3 Is there a significant feed effect at a = $alpha? . Yes there is a significant effect . No there is not a significant effect [1 pt(s)] Submit Answer Tries 0/1 Calculate the F statistic for litter (1 pt(s)] Submit Answer Tries 0/3 Is there a significant litter effect at a = $alpha? . Yes there is a significant effect . No there is not a significant effect [1 pt(s)] Submit Answer Tries 0/1 The feed company is interested in knowing which of the feed types is effective. How many pairwise comparisons must be made? [1 pt(s)] Submit Answer Tries 0/3 If a = $alpha, what is the value of a* ? [1 pt(s)] Submit Answer Tries 0/3 What is the denominator of the pairwise test statistics for the feed type? [1 pt(s)] Submit Answer Tries 0/3 What is the test statistic for feed type 1 vs. 4? (1 pt(s)] Submit Answer Tries 0/3 What is the test statistic for feed type 2 vs. 3? [1 pt(s)]
