# Agri-MCQs # 4: Field Crop Experimentation

1. Measure that specified the range of values within which any %age of the sample means is located

a. Conditional variable

* b. Confidence interval

c. Confidentiality

d. None

2. Variable that do not have a minimal size unit

a. Discontinuous variable

* b. Continuous variable

c. Continuous invariable

d. Variable

3. A characteristic of sample statistic that determines the appropriate sampling distribution called

* a. Degree of freedom

b. Probability

c. Experimental error

d. None

4. The variable hypothesized to explain variations in the dependent variable is called

a. Dependent variable

* b. Independent variable

c. Control variable

d. None

5. The variable that the researcher wished to explain is called

* a. Dependent variable

b. Independent variable

c. Control variable

d. None

6. Variables with a minimal size unit called

a. Dependent variable

b. Independent variable

c. Control variable

* d. Discrete variables

7. The sum total of all observations divided by their number is called

a. Mean

* b. Arithmetic mean

c. Median

d. Mode

8. A measure of central tendency defined as the point above and below which 50% of the observation fall

* a. Median

b. Mean

c. Mode

d. None

9. A measure of central tendency defined as the most frequently occurring observation category in the data called

* a. Mode

b. Median

c. Mean

d. Arithmetic mean

10. The simultaneous effect of several independent variable on the dependent variable is called

a. Negative relation

b. Positive relation

* c. Multiple relation

d. None

11. A direction which indicates that as value of one variable increases, the value of another decreased called

* a. Negative relation

b. Positive relation

c. Multiple relation

d. None

12. A relation between two variables X & Y of the form Y = ax+b is called

a. Multiple relation

* b. Linear relation

c. Positive relation

d. Negative relation

13. A graph of a linear relation is

a. Ascending

* b. Straight line

c. Curve

d. None

14. A direction which indicates that as value of one variable increases, the value of another also increases is called

a. Negative relation

* b. Positive relation

c. Multiple relation

d. Linear relation

15. The aggregate of all cases that conform to some designated set of specifications is

a. Sample

* b. Population

c. Probability sample

d. None

16. The standard deviation of a sampling distribution is

a. Standard deviation

* b. Standard error

c. Standard score

d. None

17. A commonly used measure variability whose size indicates the dispersion of distribution is

* a. Standard deviation

b. Standard error

c. Standard score

d. None

18. The repetition of an investigation in an identical way as safeguard against unintentional error is

a. Randomization

* b. Replication

c. Blocking

d. Non e

19. Program that guides the investigator in the process of collecting, analyzing, an interpreting observations is

a. Statistics

b. Statistic

* c. Research design

d. None

20. Consistency of a measuring instrument is

a. Relation

* b. Reliability

c. Resistance

d. None

21. Any sub set of a sampling unit from a population is

a. Population

* b. Sample

c. Sampling distribution

d. None

22. A single member of a sampling population is

a. Population

b. Sample

* c. Sampling unit

d. None

23. An intellectual problem calling for an answer in the form of scientific inquiry is

a. Research design

* b. Research problem

c. Research process

d. None

24. The rejection of a true null hypothesis is

* a. Type I error

b. Type II error

c. Type III error

d. None

25. The acceptance of a false null hypothesis is

a. Type I error

* b. Type II error

c. Type III error

d. None

26. A measure that specifies the range of a value within which any %age of the sample mean is located is called

a. Conditional variable

* b. Confidence interval

c. Confidentiality

d. None

27. A research design that allows one to examine simultaneously the effects of two or more independent variables on the dependent variable is called

* a. Factorial design

b. RCBD

c. CRD

d. LSD

28. A tentative answer to a research problem expressed in the form of a relation between independent and dependent variables is

a. Theory

* b. Hypothesis

c. Experiments

d. None

29. A specified value of a population is

a. Panel

* b. Parameter

c. Parametric test

d. None

30. Any quantity or quality which differs from individual to individual in the same population is

a. Continuous variable

* b. Statistical variable

c. Discrete variable

d. None

31. There are _____ basic principles of experimental design

a. 2

* b. 3

c. 4

d. 5

32. Three basic principles of experimental design are randomization, replication and _______

* a. Local control

b. Sampling

c. Blocking

d. None

33. The ________ is probably the most widely used of all experimental design

a. CRD

* b. RCBD

c. LSD

d. None

34. Latin square design usually will minimize ______ effectively the influence of soil heterogeneity

a. Less

* b. More

c. Not at all

d. None

35. Latin square design is _______ flexible than the randomized complete block design

a. More

* b. Less

c. Equal

d. None

36. Systematic inquiry into a subject to discover new facts or principles is called

a. Scientific method

* b. Research

c. Experiment

d. None

37. The procedure for research is generally known as

a. Research approach

* b. Scientific method

c. Experiment

d. None

38. The assignment of treatments to experimental units so that all units considered have any equal chance of receiving is called

a. Replication

* b. Randomization

c. Local control

d. Treatments

39. The unit of experimental material to which a treatment is applied is called

a. Experiment

* b. Experimental unit

c. Sample

d. Sampling unit

40. Specific measurement of a variable is

a. Variation

* b. Variate

c. Variety

d. None

41. A characteristic of a population is called

a. Statistic

b. Statistics

* c. Parameter

d. Variable

42. A characteristic of a sample is

* a. Statistic

b. Statistics

c. Parameter

d. Variable

43. ________ is the tendency of two variables to be related in a definite manner

a. Regression

* b. Correlation

c. Coefficient of correlation

d. None

44. ________ measures the closeness of the relationship

a. Regression

b. Correlation

* c. Coefficient of correlation

d. None

45. _____ is the amount of change in the dependent variable associated with a unit change in independent variable

a. Correlation

* b. Regression

c. Linear correlation

d. None

46. In linear regression equation Y = a+bx, ________ is regression coefficient

a. Y

b. a

* c. b

d. x

47. _______ represents the variability among the experimental units that remain after the other sources of variation have been removed

a. MSB

* b. MSE

c. MST

d. NONE

48. ________ uses the relationship of a variance of means to the variance per experimental unit

* a. MSB

b. MSE

c. MST

d. NONE

49. A _________ is a dosage of material or a method that is to be tested in the experiment

a. Randomization

b. Replication

* c. Treatment

d. Experimental material

50. ______ is one in which any individual measurement is as likely to be included as any other

a. Sample

b. Population

* c. Random sample

d. None

51. In analysis of variance _______ is used to test equality of means

a. LSD

* b. F TEST

c. DMRT

d. t distribution

52. Experimental error determines the ______ in the experiment

a. Similarity

* b. Variability

c. Invariability

d. None

53. _____ design is applied under homogeneous conditions

* a. CRD

b. RCBD

c. LSD

d. None

54. If there is one way variation _______ design is applied

a. CRD

* b. RCBD

c. LSD

d. None