A tea company appoints four salesmen A, B, C and D and observes their sales in three months, April, May and June: Months April May June A 36 28 26 1 i. ii. B 36 29 28 Salesmen с 21 31 29 For the two-way analysis of variance model with one observation per cell, we write the observation from the group and block as Y₁ = μ+B₁+T₁ +8₁ (a) Explain each term in the above model in the context of the given information. (b) Consider the observation on agent B and house 1 (Y₂ = 28) Estimate Estimate and interpret ₂ D 35 32 29 iii. Estimate and interpret r₁ iv. Estimate 21 (c) Name the blocking variable and the treatment in this experiment

MATLAB: An Introduction with Applications
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QUESTION ONE
A tea company appoints four salesmen A, B, C and D and observes their sales in three months,
April, May and June:
Months
April
May
June
A
36
28
26
i.
ii.
1
B
36
29
28
Salesmen
C
21
31
29
For the two-way analysis of variance model with one observation per cell, we write the
observation from the jh group and ih block as
Y₁ = μ+ B₁+t, + &
(a) Explain each term in the above model in the context of the given information.
(b) Consider the observation on agent B and house 1 (Y₂₁ = 28)
Estimate u
Estimate and interpret ₂
D
35
32
29
iii.
Estimate and interpret 7₁
iv.
Estimate 21
(c) Name the blocking variable and the treatment in this experiment
Transcribed Image Text:QUESTION ONE A tea company appoints four salesmen A, B, C and D and observes their sales in three months, April, May and June: Months April May June A 36 28 26 i. ii. 1 B 36 29 28 Salesmen C 21 31 29 For the two-way analysis of variance model with one observation per cell, we write the observation from the jh group and ih block as Y₁ = μ+ B₁+t, + & (a) Explain each term in the above model in the context of the given information. (b) Consider the observation on agent B and house 1 (Y₂₁ = 28) Estimate u Estimate and interpret ₂ D 35 32 29 iii. Estimate and interpret 7₁ iv. Estimate 21 (c) Name the blocking variable and the treatment in this experiment
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QUESTION ONE
A tea company appoints four salesmen A, B, C and D and observes their sales in three months,
April, May and June:
Months
April
May
June
i.
ii.
111.
iv.
A
36
28
26
Estimate u
Estimate and interpret B₂
1
Estimate and interpret 7₁
Estimate &
B
36
29
28
For the two-way analysis of variance model with one observation per cell, we write the
observation from the j" group and i block as
Y₁ = μ+ B₁+t, + &
(a) Explain each term in the above model in the context of the given information.
(b) Consider the observation on agent B and house 1 (Y₂ = 28)
Salesmen
с
21
31
29
D
35
32
29
(c) Name the blocking variable and the treatment in this experiment
(d) What is the purpose of the blocks in this experiment?
(e) Prepare a two-way analysis of variance table.
(f) Test at the 5% level of significance the null hypothesis that there is significant difference
in sales made by the four salesmen.
(g) Test at the 5% level of significance the null hypothesis that there is significant difference
in the sales made during different months.
Transcribed Image Text:QUESTION ONE A tea company appoints four salesmen A, B, C and D and observes their sales in three months, April, May and June: Months April May June i. ii. 111. iv. A 36 28 26 Estimate u Estimate and interpret B₂ 1 Estimate and interpret 7₁ Estimate & B 36 29 28 For the two-way analysis of variance model with one observation per cell, we write the observation from the j" group and i block as Y₁ = μ+ B₁+t, + & (a) Explain each term in the above model in the context of the given information. (b) Consider the observation on agent B and house 1 (Y₂ = 28) Salesmen с 21 31 29 D 35 32 29 (c) Name the blocking variable and the treatment in this experiment (d) What is the purpose of the blocks in this experiment? (e) Prepare a two-way analysis of variance table. (f) Test at the 5% level of significance the null hypothesis that there is significant difference in sales made by the four salesmen. (g) Test at the 5% level of significance the null hypothesis that there is significant difference in the sales made during different months.
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