This test contains MCQs Design of Experiments (DOE). Click the MCQS Design of Experiments list links to start with the quiz. All the MCQs Designs of Experiments are from topics of Basic principles of Design of Experiments, concept of Randomization, Replication, types of Designs, Experimental Unit and Error, CRD, CRBD, LSD, Greco LSD, Factorial design and experiments, Response surface design, and balanced incomplete block designs. etc.
Online MCQs Design of Experiments
Table of Contents
Introduction
An experiment deliberately imposes a treatment on a group of objects or subjects to observe the response. The experimental unit is the basic entity or unit on which the experiment is performed. It is an object to which the treatment is applied and the variable under investigation is measured and analyzed.
Single-Factor Design
In a single-factor experiment, only a single factor varies while all others are kept constant. The CRD, RCBD, and LSD are examples of single-factor designs.
Multi-Factor Design
Multi-factor designs are also known as factorial experiments. When several factors are investigated simultaneously in a single experiment, known as a factorial experiment.
Systematic Designs
In systematic designs treatments are applied to the experimental units by some systematic pattern, i.e., by the choice of the experimenter. For example, the experimenter wishes to test three treatments, and he decides to have four repetitions of each treatment.
Randomized Designs
In randomized designs, as the treatments are applied randomly, the conclusions drawn are supported by statistical tests. In this way, inferences are applicable in a wider range, and the random process minimizes the systematic error. The analysis of variance techniques is also suitable for randomized designs only.
Purpose of Design of Experiments
The purpose of the Design of Experiments is:
- Get maximum information for minimum expenditure in the minimum possible time.
- Helps to reduce the experimental error.
- To ignore spurious effects, if any.
- To evaluate and examine the outcomes critically and logically.
