Homework Answers
Tukey Kramer test
| Level of significance | 0.05 |
| no. of treatments,k | 3 |
| DF error =N-k= | 153 |
| MSE | 1078.536 |
| q-statistic value(α,k,N-k) | 3.348 |
| fridays | satudays | sundays | |
| count, ni = | 52 | 52 | 52 |
| mean , x̅ i = | 396.769 | 441.712 | 390.135 |
critical value = q*√(MSE/2*(1/ni+1/nj)) = 15.2476
confidence interval = mean difference ± critical
value
if confidence interval contans zero, then means are not
different.
| confidence interval | |||||||
| population mean difference | critical value | lower limit | upper limit | result | |||
| µfridays-µsatudays | -44.942 | 15.2476 | -60.19 | -29.69 | yes,means are different | ||
| µfridays-µsundays | 6.635 | 15.2476 | -8.61 | 21.88 | no, means are not different | ||
| µsaturdays-µsundays | 51.577 | 15.2476 | 36.33 | 66.82 | yes, means are different | ||
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Given a recent outbreak of illness caused by E. coli bacteria, the mayor in a large city is concerned that some of his restaurant inspectors are not consistent with their evaluations of a restaurant's cleanliness. In order to investigate this possibility, the mayor has five restaurant inspectors grade (scale of O to 100) the cleanliness of three restaurants. The results are shown in the accompanying table. (You may find it useful to reference the g table.) 10 points...
The following output summarizes the results for a one-way analysis of variance experiment in whic...
The following output summarizes the results for a one-way
analysis of variance experiment in which the treatments were three
different hybrid cars and the variable measured was the miles per
gallon (mpg) obtained while driving the same route. (You
may find it useful to reference the q
table.)
Hybrid 1: x¯1x¯1 = 25, n1 = 20
Hybrid 2: x¯2x¯2 = 35, n2 = 15
Hybrid 3: x¯3x¯3 = 21, n3 = 18
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Check my wor The following output summarizes the results for a one-way analysis of variance experiment...
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Given a recent outbreak of illness caused by E. coli bacteria, the mayor in a large city is conce...
Given a recent outbreak of illness caused by E. coli bacteria, the mayor in a large city is concerned that some of his restaurant inspectors are not consistent with their evaluations of a restaurant's cleanliness. In order to investigate this possibility, the mayor has five restaurant inspectors grade (scale of O to 100) the cleanliness of three restaurants. The results are shown in the accompanying table. (You may find it useful to reference the q table.) Restaurant Inspector 72 68...
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Given a recent outbreak of illness caused by E. coli bacteria, the mayor in a large city is concerned that some of his restaurant inspectors are not consistent with their evaluations of a restaurant's cleanliness In order to investigate this possibility, the mayor has five restaurant inspectors grade (scale of O to 100) the cleanliness of three restaurants. The results are shown in the accompanying table. (You may find it useful to reference the g table.) Restaurant Inspector...
The following output summarizes the results for a one-way analysis of variance experiment in which the treatments were three different hybrid cars and the variable measured was the miles per gallon (mpg) obtained while driving the same route. (You may find it useful to reference the g table.) Hybrid 1: ア1-33, n1-20 Hybrid 2:239, n2 - 15 Hybrid 3:29, n3 18 Source of Variation Between Groups Within Groups Total df 1,181.44 1,439.34 2,620.78 MS 590.72 28.79 p-value 0.0000 20.52 50...
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Given a recent outbreak of illness caused by E. coli bacteria, the mayor in a large city is concerned that some of his restaurant inspectors are not consistent with their evaluations of a restaurant's cleanliness. In order to investigate this possibility, the mayor has five restaurant inspectors grade (scale of O to 100) the cleanliness of three restaurants. The results are shown in the accompanying table. (You may find it useful to reference the g table.) 10 points...
The following output summarizes the results for a one-way
analysis of variance experiment in which the treatments were three
different hybrid cars and the variable measured was the miles per
gallon (mpg) obtained while driving the same route. (You
may find it useful to reference the q
table.)
Hybrid 1: x¯1x¯1 = 25, n1 = 20
Hybrid 2: x¯2x¯2 = 35, n2 = 15
Hybrid 3: x¯3x¯3 = 21, n3 = 18
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Check my wor The following output summarizes the results for a one-way analysis of variance experiment in which the treatments were three different hybrid cars and the variable measured was the miles per gallon (mpg) obtained while driving the same route. (You may find it useful to reference the table.) Hybrid 1: 2 - 27, n = 20 Hybrid 2: = 41, n2 = 15 Hybrid 3 = 34, n = 18 df Source of Variation Between Groups Within Groups...
Given a recent outbreak of illness caused by E. coli bacteria, the mayor in a large city is concerned that some of his restaurant inspectors are not consistent with their evaluations of a restaurant's cleanliness. In order to investigate this possibility, the mayor has five restaurant inspectors grade (scale of O to 100) the cleanliness of three restaurants. The results are shown in the accompanying table. (You may find it useful to reference the q table.) Restaurant Inspector 72 68...
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