Completely randomized design is based on the principles of ______ and randomization only.
Replication.
The three basic principles of experimental design are randomization, replication, and local control.
A Completely Randomized Design (CRD) assumes homogeneous experimental units, so it does not use local control (blocking). It relies on only two principles: randomization (treatments assigned to units at random) and replication (each treatment applied to more than one unit, which gives the estimate of experimental error).
Hence the blank is Replication.
Which of the following is NOT a way of the sampling?
Which of the following is a source of primary data?
Suppose in a certain large group, the height is approximately normally distributed with a mean of 160 cm and the standard deviation is 10. For a sample of size 16, the sampling distribution of sample mean has standard error equal to:
Which of the following is NOT an example of the probability sampling technique?
In the construction of cost of living index, commodities are selected by:
Consider simple random sampling with replacement from a population of size N. The number of samples of size n is
If a population consists of 10 units and SRSWOR is adopted, the probability of selecting a specified sample of 2 units is:
In drawing a sample of size n under SRSWR from a population of size N, the probability that a specified member is included in the chosen sample is
A sample of 60 students is to be selected from a population of 480 students belonging to 3 different schools.
| School | N i(Total No. of Students) | N i(sample size) |
| A | 120 | n 1 |
| B | 200 | n 2 |
| C | 160 | n 3 |
In SRSWOR of size n from a population with N units if p is the proportion of sampled units having a given attribute, then unbiased estimate of V(p) is
Which of the following is NOT a way of the sampling?
Which of the following is a source of primary data?
Suppose in a certain large group, the height is approximately normally distributed with a mean of 160 cm and the standard deviation is 10. For a sample of size 16, the sampling distribution of sample mean has standard error equal to:
Which of the following is NOT an example of the probability sampling technique?