Question
eBook To test for any significant difference in the mean number of hours between breakdowns for...
eBook To test for any significant difference in the mean number of hours between breakdowns for four machines, the following data were obtained. Machine 1 Machine 2 Machine 3 Machine 4 6.4 8.7 11.1 9.9 7.8 7.4 10.3 12.8 5.3 9.4 9.7 12.1 7.4 10.1 10.3 10.8 8.4 9.2 9.2 11.3 7.3 9.8 8.8 11.5 The mean times between breakdowns are 7.1, 9.1, 9.9 and 11.4 hours respectively. In the analysis of variance, MSTR = 19.26 and MSE = .97. Use the Bonferroni adjustment to test for a significant difference between all pairs of means. Assume that a maximum overall experiment error rate of .05 is desired. There are six pairwise comparisons among the 4 machines. What error rate should be used for each pairwise comparison (to 4 decimals)? Using t = 2.845 for the above error rate, calculate the Bonferroni LSD value (to 2 decimals). Complete the table below to determine whether there are any significant differences between population means. Difference Absolute Value Conclusion 1 - 2 1 - 3 1 - 4 2 - 3 2 - 4 3 - 4
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
To test for any significant difference in the mean number of hours between breakdowns for four...
To test for any significant difference in the mean number of
hours between breakdowns for four machines, the following data were
obtained.
Machine 1
Machine 2
Machine 3
Machine 4
6.4
8.7
11.1
9.9
7.8
7.4
10.3
12.8
5.3
9.4
9.7
12.1
7.4
10.1
10.3
10.8
8.4
9.2
9.2
11.3
7.3
9.8
8.8
11.5
The mean times between breakdowns are 7.1, 9.1, 9.9 and 11.4
hours respectively. In the analysis of variance, MSTR = 19.26 and
MSE = .97. Use...
To test for any significant difference in the mean number of hours between breakdowns for four...
To test for any significant difference in the mean number of
hours between breakdowns for four machines, the following data were
obtained.
Machine 1
Machine 2
Machine 3
Machine 4
6.4
8.7
11.1
9.9
7.8
7.4
10.3
12.8
5.3
9.4
9.7
12.1
7.4
10.1
10.3
10.8
8.4
9.2
9.2
11.3
7.3
9.8
8.8
11.5
The mean times between breakdowns are 7.1, 9.1, 9.9 and 11.4
hours respectively. In the analysis of variance, MSTR = 19.26 and
MSE = .97. Use...
To test for any significant difference in the number of hours between breakdowns for four machines,...
To test for any significant difference in the number of hours
between breakdowns for four machines, the following data were
obtained.
Machine
1
Machine
2
Machine
3
Machine
4
6.4
9.1
11.0
9.7
7.8
7.8
10.2
12.5
5.4
9.7
9.7
11.7
7.5
10.3
10.3
10.5
8.5
9.6
9.2
11.0
7.0
9.9
8.4
11.2
a) At the α = 0.05 level of significance, what is the
difference, if any, in the population mean times among the four
machines?
Find the value...
To test for any significant difference in the number of hours between breakdowns for four machines,...
To test for any significant difference in the number of hours
between breakdowns for four machines, the following data were
obtained.
Machine
1
Machine
2
Machine
3
Machine
4
6.4
8.8
10.9
9.7
7.9
7.6
10.3
12.6
5.5
9.5
9.6
11.8
7.5
10.3
10.2
10.7
8.4
9.3
9.0
11.0
7.5
10.3
8.8
11.4
a) Use Fisher's LSD procedure to test for the equality of the
means for machines 2 and 4. Use a 0.05 level of significance.
Find the value...
To test whether the mean time needed to mix a batch of material is the same...
To test whether the mean time needed to mix a batch of material
is the same for machines produced by three manufacturers, the
Jacobs Chemical Company obtained the following data on the time (in
minutes) needed to mix the material.
Manufacture
1
2
3
18
30
24
27
24
18
24
33
27
21
27
21
a. Compute the values below (to 2 decimals, if necessary).
Sum of Squares, Error
Mean Squares, Error
Fisher's LSD Value
b. Use Fisher's LSD...
To test whether the mean time needed to mix a batch of material is the same...
To test whether the mean time needed to mix a batch of material
is the same for machines produced by three manufacturers, the
Jacobs Chemical Company obtained the following data on the time (in
minutes) needed to mix the material.
Manufacture
1
2
3
18
27
24
24
24
18
21
30
27
21
24
21
a. Compute the values below (to 2 decimals, if necessary).
Sum of Squares, Error
Mean Squares, Error
Fisher's LSD Value
b. Use Fisher's LSD...
1. if a statistically significant difference was found between two means using an independent-samples t test,...
1. if a statistically significant difference was found between
two means using an independent-samples t test, which of the
following interpretations would be correct.
A) something over and above sampling error is responsible for
the difference between sample means
B) the difference between two means is meaningful.
C)it is unlikely that something other than error is responsible
for the difference between the sample means.
D) the difference between the two means is due to a large effect
size
2. in...
To test whether the mean time needed to mix a batch of material is the same...
To test whether the mean time needed to mix a batch of material
is the same for machines produced by three manufacturers, a
chemical company obtained the following data on the time (in
minutes) needed to mix the material.
Manufacturer
1
2
3
19
29
21
25
27
19
24
32
23
28
28
25
(a)
Use these data to test whether the population mean times for
mixing a batch of material differ for the three manufacturers.
Use
α =...
To test whether the mean time needed to mix a batch of material is the same...
To test whether the mean time needed to mix a batch of material
is the same for machines produced by three manufacturers, the
Jacobs Chemical Company obtained the following data on the time (in
minutes) needed to mix the material. Manufacturer 1 2 3 21 34 20 27
32 19 25 37 23 23 33 22 a. Use these data to test whether the
population mean times for mixing a batch of material differ for the
three manufacturers. Use ....
The following data are from a completely randomized design. Treatment Treatment Treatment A B C 32...
The following data are from a completely randomized design.
Treatment
Treatment
Treatment
A
B
C
32
46
33
30
45
36
30
46
35
26
48
36
32
50
40
Sample mean
30
47
36
Sample variance
6
4
6.5
At the = .05 level of significance, can we reject
the null hypothesis that the means of the three treatments are
equal?
Compute the values below (to 1 decimal, if necessary).
Sum of Squares, Treatment
Sum of Squares, Error
Mean Squares,...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 31 minutes ago
asked 34 minutes ago
asked 39 minutes ago
asked 54 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 2 hours ago
asked 2 hours ago
asked 2 hours ago