Homework Answers
Solution-1:
Install analysi toolpak in Excel
Go to
Data >Data Analysis>ANOVA single factot
ANSWER:
F=25.09
Solution-b:
df numerator=k-1=6-1=5
df denominator=n-k=6*26-6=150
MS=ss/df
F=MS mixture/ms erro
=MS between/MSwithin
ANSWER:
F=51.28
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1 An article describes an experiment in which several types of boxes were compared with respect...
An article describes an experiment in which several types of boxes were compared with respect to...
An article describes an experiment in which several types of boxes were compared with respect to compression strength (lb). The table below presents the results of a single-factor ANOVA experiment involving I = 4 types of boxes. Type of Box Sample Mean Sample SD 1 Compression Strength (lb) 655.5 788.3 734.3 721.4 679.1 699.4 789.2 772.5 786.9 686.1 732.1 774.8 713.00 46.55 2 756.93 40.34 3 737.1 639.0 696.3 671.7717.2 727.1 698.07 37.20 4 535.1 628.7 542.4 559.0 586.9 520.0...
An article describes an experiment in which several types of boxes were compared with respect to...
An article describes an experiment in which several types of boxes were compared with respect to compression strength (lb). The table below presents the results of a single-factor ANOVA experiment involving I = 4 types of boxes. Type of Box Sample Mean Sample SD 713.00 46.55 Compression Strength (lb) 655.5 788.3 734.3 721.4 679.1 699.4 789.2 772:5 786.9 686.1 732.1 774.8 737.1 639.0 696.3 671.7 717.2 727.1 2 756.93 40.34 3 698.07 37.20 4 535.1 628.7 542.4 559.0 586.9 520.0...
An article describes an experiment in which several types of boxes were compared with respect to...
An article describes an experiment in which several types of boxes were compared with respect to compression strength (lb). The table below presents the results of a single-factor ANOVA experiment involving I = 4 types of boxes. Type of Box Compression Strength (lb) Sample Mean Sample SD 1 655.5 788.3 734.3 721.4 679.1 699.4 713.00 46.55 2 789.2 772.5 786.9 686.1 732.1 774.8 756.93 40.34 3 737.1 639.0 696.3 671.7 717.2 727.1 698.07 37.20 4 535.1 628.7 542.4 559.0 586.9...
1.An experiment was carried out to compare electrical resistivity for six different low-permeability concrete bridge deck...
1.An experiment was carried out to compare electrical resistivity for six different low-permeability concrete bridge deck mixtures. There were 26 measurements on concrete cylinders for each mixture; these were obtained 28 days after casting. The entries in the accompanying ANOVA table are based on information in an article. Fill in the remaining entries. (Round your answer for f to two decimal places.) Source df sum of squares mean square f Mixture : _____ _____________ __________ ____ Error : ______ _____________...
An experiment was carried out to compare electrical resistivity for six different low-permeability concrete bridge deck...
An experiment was carried out to compare electrical resistivity for six different low-permeability concrete bridge deck mixtures. There were 26 measurements on concrete cylinders for each mixture; these were obtained 28 days after casting. The entries in the accompanying ANOVA table are based on information in an article. Fill in the remaining entries. (Round your answer for f to two decimal places.) Source df Sum of Squares Mean Square f Mixture Error 13.989 Total 5664.495 Test appropriate hypotheses at level...
=========================================== f=25.09 is wrong. Olestra is a fat substitute approved by the FDA for use in...
===========================================
f=25.09 is wrong.
Olestra is a fat substitute approved by the FDA for use in snack foods. Because there have been anecdotal reports of gastrointestinal problems associated with olestra consumption, a randomized, double-blind, placebo-controlled experiment was carried out to compare olestra potato chips to regular potato chips with respect to GI symptoms. Among 500 individuals in the TG control group, 16.6% experienced an adverse GI event, whereas among the 500 individuals in the olestra treatment group, 14.8% experienced such...
The following data was reported on total Fe for four types of iron formation (1 =...
The following data was reported
on total Fe for four types of iron formation (1 = carbonate, 2 =
silicate, 3 = magnetite, 4 = hematite).
1:
20.8
28.1
27.8
27.0
28.2
25.2
25.3
27.1
20.5
31.2
2:
26.9
24.0
26.2
20.2
23.5
34.0
17.1
26.8
23.7
24.6
3:
30.4
34.0
27.5
29.4
28.1
26.2
29.9
29.5
30.0
36.4
4:
36.4
44.2
34.1
30.3
31.8
33.1
34.1
32.9
36.3
25.8
Carry out an analysis of variance F test at
significance...
The following data was reported on total Fe for four types of iron formation (1 =...
The following data was reported on total Fe for four types of iron formation (1 = carbonate, 2 = silicate, 3 = magnetite, 4 = hematite) 1: 20.9 28.1 27.8 27.0 28.5 25.2 25.3 27.1 20.5 32.1 2: 26.5 24.0 26.2 20.2 23.6 34.0 17.1 26.8 23.7 25.0 3: 29.7 34.0 27.5 29.4 28.3 26.2 29.9 29.5 30.0 35.7 4:37.1 44.2 34.1 30.3 32.1 33.1 34.1 32.9 36.3 25.8 Carry out an analysis of variance Ftest at significance level 0.01....
Six samples of each of four types of cereal grain grown in a certain region were...
Six samples of each of four types of cereal grain grown in a certain region were analyzed to determine thiamin content, resulting in the following data (wg/g): Note: If you want to use this data has been set up so you may copy it directly into R. Wheat=c( 5.3, 4.5, 6.0, 6.2, 6.8, 5.8) Barley=c( 6.5, 7.9, 6.2, 7.6, 5.9, 5.6) Maize=c( 5.8, 4.8, 6.4, 4.8, 6.0, 5.1) Oats = [ 8.2, 6.0, 7.7, 7.0, 5.4, 7.2) In this example...
Will rate, thank you in advance. The ANOVA summary table for an experiment with four groups,...
Will rate, thank you in advance.
The ANOVA summary table for an experiment with four groups, with seven values in each group, is shown to the right. Complete parts (a) through (d) below. Degrees of Freedom C-1 =3 Sum of Squares SSA = 120 Mean Square (Variance) MSA = 40 F FSTAT = 2.00 Source Among groups Within groups Total n-c= 24 SSW = 480 MSW = 20 n-1 = 27 SST = 600 Click here to view page 1...
An article describes an experiment in which several types of boxes were compared with respect to compression strength (lb). The table below presents the results of a single-factor ANOVA experiment involving I = 4 types of boxes. Type of Box Sample Mean Sample SD 1 Compression Strength (lb) 655.5 788.3 734.3 721.4 679.1 699.4 789.2 772.5 786.9 686.1 732.1 774.8 713.00 46.55 2 756.93 40.34 3 737.1 639.0 696.3 671.7717.2 727.1 698.07 37.20 4 535.1 628.7 542.4 559.0 586.9 520.0...
An article describes an experiment in which several types of boxes were compared with respect to compression strength (lb). The table below presents the results of a single-factor ANOVA experiment involving I = 4 types of boxes. Type of Box Sample Mean Sample SD 713.00 46.55 Compression Strength (lb) 655.5 788.3 734.3 721.4 679.1 699.4 789.2 772:5 786.9 686.1 732.1 774.8 737.1 639.0 696.3 671.7 717.2 727.1 2 756.93 40.34 3 698.07 37.20 4 535.1 628.7 542.4 559.0 586.9 520.0...
===========================================
f=25.09 is wrong.
Olestra is a fat substitute approved by the FDA for use in snack foods. Because there have been anecdotal reports of gastrointestinal problems associated with olestra consumption, a randomized, double-blind, placebo-controlled experiment was carried out to compare olestra potato chips to regular potato chips with respect to GI symptoms. Among 500 individuals in the TG control group, 16.6% experienced an adverse GI event, whereas among the 500 individuals in the olestra treatment group, 14.8% experienced such...
The following data was reported
on total Fe for four types of iron formation (1 = carbonate, 2 =
silicate, 3 = magnetite, 4 = hematite).
1:
20.8
28.1
27.8
27.0
28.2
25.2
25.3
27.1
20.5
31.2
2:
26.9
24.0
26.2
20.2
23.5
34.0
17.1
26.8
23.7
24.6
3:
30.4
34.0
27.5
29.4
28.1
26.2
29.9
29.5
30.0
36.4
4:
36.4
44.2
34.1
30.3
31.8
33.1
34.1
32.9
36.3
25.8
Carry out an analysis of variance F test at
significance...
The following data was reported on total Fe for four types of iron formation (1 = carbonate, 2 = silicate, 3 = magnetite, 4 = hematite) 1: 20.9 28.1 27.8 27.0 28.5 25.2 25.3 27.1 20.5 32.1 2: 26.5 24.0 26.2 20.2 23.6 34.0 17.1 26.8 23.7 25.0 3: 29.7 34.0 27.5 29.4 28.3 26.2 29.9 29.5 30.0 35.7 4:37.1 44.2 34.1 30.3 32.1 33.1 34.1 32.9 36.3 25.8 Carry out an analysis of variance Ftest at significance level 0.01....
Six samples of each of four types of cereal grain grown in a certain region were analyzed to determine thiamin content, resulting in the following data (wg/g): Note: If you want to use this data has been set up so you may copy it directly into R. Wheat=c( 5.3, 4.5, 6.0, 6.2, 6.8, 5.8) Barley=c( 6.5, 7.9, 6.2, 7.6, 5.9, 5.6) Maize=c( 5.8, 4.8, 6.4, 4.8, 6.0, 5.1) Oats = [ 8.2, 6.0, 7.7, 7.0, 5.4, 7.2) In this example...
Will rate, thank you in advance.
The ANOVA summary table for an experiment with four groups, with seven values in each group, is shown to the right. Complete parts (a) through (d) below. Degrees of Freedom C-1 =3 Sum of Squares SSA = 120 Mean Square (Variance) MSA = 40 F FSTAT = 2.00 Source Among groups Within groups Total n-c= 24 SSW = 480 MSW = 20 n-1 = 27 SST = 600 Click here to view page 1...
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