The following data are from a completely randomized design. [Multiple choice with single answer] Treatment A Treatment B Treatment C 30 40 40 36 38 40 33 38 36 32 42 34 Sample mean 32.75 39.5 37.5 Sample variance 6.25 3.6667 9 At the α = 0.05, test whether the means for the three treatments are equal. (C). Is there a significant difference between the means for treatments A and B? (a) Yes, because 32.75≠39.5 (b) No, because 32.75<39.5 (c) No, because 6.75>LSD (d) Yes, because -6.75
Q3. The following data are from a completely randomized design. [Multiple choice with single answer]
|
Treatment A |
Treatment B |
Treatment C |
|
|---|---|---|---|
| 30 | 40 | 40 | |
| 36 | 38 | 40 | |
| 33 | 38 | 36 | |
| 32 | 42 | 34 | |
|
Sample mean |
32.75 | 39.5 | 37.5 |
|
Sample variance |
6.25 | 3.6667 | 9 |
At the α = 0.05, test whether the means for the three treatments are equal.
(C). Is there a significant difference between the means for treatments A and B?
(a) Yes, because 32.75≠39.5
(b) No, because 32.75<39.5
(c) No, because 6.75>LSD
(d) Yes, because -6.75<LSD
(e) Yes, because 6.75<LSD
(f) None of the above
(D). Is there a significant difference between the means for treatments B and C?
(a) Yes, because 39.5≠37.5
(b) Yes, because 2<LSD
(c) No, because 2<LSD
(d) No, because -2<LSD.
(e) Yes, because -2<LSD
(f) None of the above
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