(a)
Compute the LSD method.
(a)
Explanation of Solution
t-value can be written as follows:
LSD can be calculated as follows:
Table-1 shows the mean and difference as follows:
Table-1
Treatment | Means | Difference | |
i = 1, j =2 | 227 | 205 | 22 |
i = 1, j =3 | 227 | 219 | 8 |
i = 1, j =4 | 227 | 248 | -21 |
i = 1, j =5 | 227 | 202 | 25 |
i = 2, j =3 | 205 | 219 | -14 |
i = 2, j =4 | 205 | 248 | -43 |
i = 2, j =5 | 205 | 202 | 3 |
i = 3, j =4 | 219 | 248 | -29 |
i = 3, j =5 | 219 | 202 | 17 |
i = 4, j =5 | 248 | 202 | 46 |
Therefore, from the above calculation, the pairs of mean differ,
(b)
Compute the Bonferroni adjustment.
(b)
Explanation of Solution
t-value can be written as follows:
LSD can be calculated as follows:
Table-1 shows the mean and difference as follows:
Table-1
Treatment | Means | Difference | |
i = 1, j =2 | 227 | 205 | 22 |
i = 1, j =3 | 227 | 219 | 8 |
i = 1, j =4 | 227 | 248 | -21 |
i = 1, j =5 | 227 | 202 | 25 |
i = 2, j =3 | 205 | 219 | -14 |
i = 2, j =4 | 205 | 248 | -43 |
i = 2, j =5 | 205 | 202 | 3 |
i = 3, j =4 | 219 | 248 | -29 |
i = 3, j =5 | 219 | 202 | 17 |
i = 4, j =5 | 248 | 202 | 46 |
Therefore, from the above calculation, the following pairs differ.
(c)
Compute the Tukey’s multiple comparison.
(c)
Explanation of Solution
Table-1 shows the mean and difference as follows:
Table-1
Treatment | Means | Difference | |
i = 1, j =2 | 227 | 205 | 22 |
i = 1, j =3 | 227 | 219 | 8 |
i = 1, j =4 | 227 | 248 | -21 |
i = 1, j =5 | 227 | 202 | 25 |
i = 2, j =3 | 205 | 219 | -14 |
i = 2, j =4 | 205 | 248 | -43 |
i = 2, j =5 | 205 | 202 | 3 |
i = 3, j =4 | 219 | 248 | -29 |
i = 3, j =5 | 219 | 202 | 17 |
i = 4, j =5 | 248 | 202 | 46 |
Therefore, from the above calculation, the following pairs differ.
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Chapter 14 Solutions
Statistics for Management and Economics (Book Only)
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