Indicate clearly the most appropriate answer 1) An experiment is conducted following an RCBD with one replicate per treatment per block, to test the effects of five treatments (for some disease) on five elderly men and five elderly women. In such an experimental situation, the Error df in the ANOVA decomposition is: a) 1 b) 2 c) 3 d) 4 2) Among the statements below, which one is not correct in the statistical inference for one population mean? Increasing the significance level α increases the power of the statistical test. A Type I error is made when the null hypothesis is rejected while it is true. The rejection of the null hypothesis means that the null hypothesis is false. The risk of making a Type II error decreases when the sample size increases. 3) Consider an RCBD with p = 4, n = 4 and 1 replicate per treatment per block. Assume the conditions of application of a procedure of multiple pairwise comparisons of treatment means are satisfied. For such a purpose, the LSD statistic (α = 0.05) is: a)?0.95(3)(√????? (??/2)) b) ?0.975(9)(√????? (??/4)) c) ?0.95(3)(√????? (??/4)) d) ?0.975(9)(√????? (??/2))
Indicate clearly the most appropriate answer
1) An experiment is conducted following an RCBD with one replicate per treatment per block, to test the effects of five treatments (for some disease) on five elderly men and five elderly women. In such an experimental situation, the Error df in the ANOVA decomposition is:
a) 1
b) 2
c) 3
d) 4
2) Among the statements below, which one is not correct in the statistical inference for one population mean?
-
-
Increasing the significance level α increases the power of the statistical test.
-
A Type I error is made when the null hypothesis is rejected while it is true.
-
The rejection of the null hypothesis means that the null hypothesis is false.
-
The risk of making a Type II error decreases when the sample size increases.
-
3) Consider an RCBD with p = 4, n = 4 and 1 replicate per treatment per block. Assume the conditions of application of a procedure of multiple pairwise comparisons of treatment means are satisfied. For such a purpose, the LSD statistic (α = 0.05) is:
a)?0.95(3)(√????? (??/2))
b) ?0.975(9)(√????? (??/4))
c) ?0.95(3)(√????? (??/4))
d) ?0.975(9)(√????? (??/2))
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